Merge branch 'dev': v0.5

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Dockerfile

@@ -8,7 +8,7 @@ RUN npm install --no-audit --no-fund
 COPY frontend/ ./
 # Version shown in the header: the git tag for releases (set by CI), otherwise "<package version>-dev"
 ARG APP_VERSION=""
-RUN npx tsc --noEmit && npm run test:run && APP_VERSION="${APP_VERSION}" npm run build
+RUN npx tsc --noEmit && npm run lint && npm run test:run && APP_VERSION="${APP_VERSION}" npm run build
 
 # ==============================================================================
 # Stage 2: Go Backend Lint, Unit Tests & Binary Build (Cached Go module & sqlite layer)
@@ -36,7 +36,6 @@ RUN go get github.com/go-chi/chi/v5@v5.2.0 \
 # Copy application source & compiled frontend SPA assets for go:embed
 COPY cmd/ ./cmd/
 COPY internal/ ./internal/
-COPY migrations/ ./migrations/
 COPY --from=frontend-builder /app/frontend/dist ./cmd/server/dist
 
 # Run go mod tidy, static analysis (go vet), unit tests (go test), and compile final binary

Doku/api/rest.md

@@ -1,6 +1,6 @@
 # REST-API
 
-Basis: `/api/v1`. Antworten sind JSON; Fehler haben die Form `{"error": "Text"}`. Authentifizierung über `Authorization: Bearer <JWT>`. **API-Keys** (`Bearer mindsift_sec_…` bzw. Header `X-API-Key`) haben vorerst genau ein Recht: Daten einliefern über `POST /inbox` (Gedanke oder per `target` direkt Aufgabe) und `POST /webhooks/ingest`; alle anderen Endpunkte antworten mit `403`. Feinere Berechtigungen (Scopes) folgen. Zeitstempel sind ISO-8601 (UTC). Quelle der Wahrheit sind die Routen in [server.go](../../internal/api/server.go).
+Basis: `/api/v1`. Antworten sind JSON; Fehler haben die Form `{"error": "Text"}`. Authentifizierung über `Authorization: Bearer <JWT>`. **API-Keys** (`Bearer mindsift_sec_…` bzw. Header `X-API-Key`) liefern nur Daten ein, über `POST /inbox` und `POST /webhooks/ingest`, und nur für die Ziele ihrer Scopes: `webhook:triage` (Inbox), `webhook:task` (Aufgaben), `webhook:list` (Listeneinträge). Alles andere, auch Live-Streams, antwortet mit `403` bzw. `401`. Zeitstempel sind ISO-8601 (UTC). Quelle der Wahrheit sind die Routen in [server.go](../../internal/api/server.go).
 
 ## Öffentlich
 
@@ -13,11 +13,12 @@ Basis: `/api/v1`. Antworten sind JSON; Fehler haben die Form `{"error": "Text"}`
 | POST | `/auth/register` | Registrierung (`email`, `password`, `displayName`, `inviteCode`); nur mit Code oder wenn freigegeben |
 | POST | `/auth/login` | Anmeldung (`login`/`email`/`username`, `password`) → `{token, user}` |
 | POST | `/auth/forgot-password` | `{email}` → immer `{ok: true}`; Mail mit Link nur, wenn das Konto existiert. `503`, wenn SMTP oder `BASE_URL` fehlen |
-| POST | `/auth/reset-password` | `{token, password}` (mind. 4 Zeichen) → neues Passwort, alle Sitzungen beendet; `400` bei ungültigem oder abgelaufenem Link |
+| POST | `/auth/reset-password` | `{token, password}` (mind. 8 Zeichen) → neues Passwort, alle Sitzungen beendet; `400` bei ungültigem oder abgelaufenem Link |
 | POST | `/auth/quickstart` | Immer `403` (Gastzugang deaktiviert) |
-| POST | `/webhooks/ingest` | Aufgabe per Webhook anlegen, Token als `?token=`, `X-API-Key` oder Bearer. Body: `title`/`content`/`text`/`message`, `priority`, `source`, `tags`, `dueDate`; Klartext-Body wird als Inhalt genommen |
+| POST | `/webhooks/ingest` | Einliefern per Webhook, Key als `X-API-Key` (empfohlen), Bearer oder `?token=`. Body: `title`/`content`/`text`/`message`, `priority`, `source`, `tags`, `dueDate`; `target` (oder `type`): `triage` (Standard, Inbox), `task` (optional `taskListId`), `list_item` (`listId`, `category`, `quantity`). Klartext-Body wird als Inhalt genommen. `403` ohne passenden Scope oder ohne Schreibrecht auf die Liste |
-| GET | `/ws`, `/ws/spaces/{id}`, `/ws/lists/{id}` | WebSocket, siehe [websocket.md](websocket.md); Token als `?token=` nötig |
+| POST | `/auth/stream-ticket` | Einmal-Ticket (60 s) für WebSocket/SSE |
-| GET | `/events` | SSE-Fallback; Token als `?token=` nötig |
+| GET | `/ws`, `/ws/spaces/{id}`, `/ws/lists/{id}` | WebSocket, siehe [websocket.md](websocket.md); `?ticket=` oder `Authorization`-Header |
+| GET | `/events` | SSE-Fallback; `?ticket=` oder `Authorization`-Header |
 
 ## Konto und Allgemeines (angemeldet)
 
@@ -30,7 +31,7 @@ Basis: `/api/v1`. Antworten sind JSON; Fehler haben die Form `{"error": "Text"}`
 | PATCH | `/auth/settings` | `displayName`, `email`, `password`, `avatarUrl`, `alarmChannels`, `alarmEmail`, `discordWebhookUrl`, `customWebhookUrl`, `notifyBeforeMinutes` |
 | POST | `/auth/alarms/test` | Test-Alarm (`channel`: `email`/`discord`/`webhook`, optional `target`) |
 | GET | `/users/directory`, `/collaborators` | Personen, die man sehen und mit denen man teilen kann (je nach `sharingMode`, [sharing-and-permissions.md](../sharing-and-permissions.md)) |
-| GET | `/stats` | Zähler fürs Dashboard |
+| GET | `/stats` | Zähler fürs Dashboard (u. a. `inboxCount`, `tasksOpenCount`, `listItemsOpenCount` = offene Einträge aller sichtbaren Listen) |
 | GET | `/search?q=` | Globale FTS5-Suche in zugänglichen Notizen (Titel & Blöcke), Aufgaben und Listen → `{thoughts, documents, listItems, hits}` |
 | GET | `/export` | Datenexport als JSON; mit `?format=zip` dieselben Daten als `mindsift-backup.json` in einer ZIP (so lädt die Oberfläche das Backup) |
 | GET | `/export/markdown` | Obsidian-kompatibles ZIP (`mindsift-vault-DATUM.zip`), direkt gestreamt: Notizen als `.md` mit YAML-Frontmatter in der Ordnerstruktur des Nutzers (inkl. geteilter), `Aufgaben/<Liste>.md` im Format des Tasks-Plugins (`📅`, `⏫`/`🔺`), `Listen/<Liste>.md` |
@@ -40,7 +41,9 @@ Basis: `/api/v1`. Antworten sind JSON; Fehler haben die Form `{"error": "Text"}`
 | — | `/import/mindsift?mode=restore` | Wiederherstellen: löscht vor dem Import alle eigenen Notizen, Ordner, Aufgaben, Gedanken und Listen (erst nachdem die Datei vollständig gelesen und geprüft ist) |
 | DELETE | `/user/data` | Alle eigenen Daten löschen, Konto bleibt (`{"password"}` nötig) |
 | DELETE | `/user/account` | Eigenes Konto mit allen Daten löschen (`{"password"}` nötig); `403` für den letzten Server-Admin. `/auth/me` liefert dafür `isLastAdmin` |
-| GET/POST/DELETE | `/keys`, `/keys/{id}` | API-Keys verwalten (Klartext nur bei Erstellung) |
+| GET | `/backups`, `/backups/{name}` | Eigene automatische Server-Backups auflisten bzw. herunterladen |
+| POST | `/backups/{name}/restore` | Server-Backup einspielen: `mode=merge` oder `restore` (gewählte Bereiche vorher leeren), `sections=notes,tasks,lists,inbox,themes`, `preview=1` |
+| GET/POST/DELETE | `/keys`, `/keys/{id}` | API-Keys verwalten (Klartext nur bei Erstellung); `POST` mit `name` und `scopes` (Standard `["webhook:triage"]`) |
 
 ### Globale Suche (`GET /api/v1/search?q=`)
 
@@ -188,6 +191,8 @@ Wiederholte Operationen (gleiche `opId`) werden nicht erneut angewendet; die Ant
 | GET/PUT | `/admin/settings` | `instanceName`, `allowRegistration`, `sharingMode` (`private`/`organizations`/`open`), SMTP-Felder; ein Moduswechsel bereinigt Freigaben |
 | GET | `/admin/settings/sharing-impact?mode=` | Probelauf: wie viele Freigaben und Gruppen-Mitgliedschaften ein Wechsel entfernen würde (`affected`) |
 | POST | `/admin/smtp/test` | Testmail (`toEmail`) |
+| GET/POST | `/admin/backups` | Datenbank-Abzüge auflisten bzw. sofort sichern (Abzug + alle Benutzer-Backups) |
+| GET | `/admin/backups/{name}` | Datenbank-Abzug herunterladen |
 
 ## Beispiele
 
@@ -197,6 +202,11 @@ curl -X POST https://mindsift.example.com/api/v1/webhooks/ingest \
   -H "X-API-Key: mindsift_sec_…" -H "Content-Type: application/json" \
   -d '{"title":"Milch kaufen #einkauf","priority":"high","dueDate":"2026-11-01"}'
 
+# Einkaufsliste per API-Key ergänzen (Scope webhook:list)
+curl -X POST https://mindsift.example.com/api/v1/webhooks/ingest \
+  -H "X-API-Key: mindsift_sec_…" -H "Content-Type: application/json" \
+  -d '{"target":"list_item","listId":"lst_…","content":"Hafermilch","quantity":"2"}'
+
 # Aufgabenliste nur lesend freigeben
 curl -X POST https://mindsift.example.com/api/v1/task-lists/tkl_…/shares \
   -H "Authorization: Bearer $TOKEN" -H "Content-Type: application/json" \

Doku/api/websocket.md

@@ -20,7 +20,7 @@ Der Client versucht zuerst WebSocket und wechselt in folgenden Fällen für die
 
 Ohne WebSocket und SSE nutzt die Notiz-Synchronisation Long-Polling (`GET /docs/{id}/changes`, bis 25 s), und wenn auch das dreimal scheitert, eine Abfrage alle 3 s (siehe [modules/workspace.md](../modules/workspace.md)).
 
-**Authentifizierung:** Token als `?token=<JWT|API-Key>` oder `Authorization`-Header. Ohne gültiges Token antworten `/ws` und `/events` mit `401`. Das Token wird nur beim Verbinden geprüft ([FLAW-22](../flaws.md)).
+**Authentifizierung:** Browser holen sich direkt vor dem Verbinden ein Einmal-Ticket (`POST /auth/stream-ticket` mit dem normalen `Authorization`-Header → `{ticket, expiresIn: 60}`) und hängen es als `?ticket=` an; es gilt 60 Sekunden und einmal und wird ungültig, sobald alle Sitzungen beendet werden. Andere Clients dürfen stattdessen den `Authorization`-Header schicken. Sitzungs-Tokens in der URL und API-Keys werden nicht angenommen (`401`). Bei Logout, „Alle Sitzungen beenden“, neuem Passwort und Deaktivierung trennt der Server alle Streams des Kontos; Clients mit gültiger Sitzung verbinden sich mit neuem Ticket neu. Mit gesetzter `BASE_URL` nimmt der WebSocket nur Verbindungen von dieser Adresse oder vom angefragten Host an ([FLAW-22](../flaws.md)).
 
 **Räume:** Jeder Beitritt (Raum in der URL, `JOIN_ROOM`, SSE-Startparameter `rooms`/`docId`, `POST /events/rooms`) wird geprüft: `doc:<id>` nur mit Lesezugriff auf die Notiz, sonst muss die ID eine lesbare geteilte Liste sein. Nicht erlaubte Räume werden ignoriert, `POST /events/rooms` antwortet dann mit `403`. SSE-Räume kann nur der Besitzer der jeweiligen `sseId` ändern.
 

Doku/architecture.md

@@ -59,11 +59,14 @@ Das Frontend liegt per `go:embed` im Binary ([cmd/server/main.go](../cmd/server/
 | `DATA_DIR` | `./data` (Container: `/data`) | Verzeichnis der Datenbank |
 | `DATABASE_URL` | leer | `sqlite:///pfad/datei.db` oder Pfad; ohne Angabe `DATA_DIR/mindsift.db`. Postgres-URLs werden **nicht** unterstützt (siehe Hinweis) |
 | `JWT_SECRET` | zufällig erzeugt, gespeichert in `$DATA_DIR/jwt.secret` | Signaturschlüssel der Tokens; bekannte Platzhalter werden ignoriert ([FLAW-04](flaws.md)) |
+| `TRUSTED_PROXIES` | `private` | Proxys, deren `X-Forwarded-For`/`X-Real-IP` geglaubt wird (`private`, `all`, `none`, CIDR-Liste); `internal/api/clientip.go` |
+| `LOGIN_PROTECTION` | `true` | Login-Sperre nach Fehlversuchen (`internal/api/loginguard.go`), `false` = aus |
 | `BASE_URL` | `http://localhost:<PORT>` | Basis-URL der Instanz; explizit gesetzt Voraussetzung für das Passwort-Zurücksetzen per Mail |
 | `TZ` | `Europe/Berlin` | Zeitzone für Fälligkeiten und Alarme; die Zeitzonendaten sind ins Binary eingebettet (`time/tzdata`) |
 | `ALLOW_REGISTRATION` | `false` | Startwert; die Einstellung im Admin-UI (`system_settings`) hat Vorrang |
 | `LOG_LEVEL` / `DEBUG` | `info` / `false` | `debug`, `info`, `warn`, `error`; `DEBUG=true` erzwingt `debug` |
 | `MINDA_DEMO` (auch `MINDSIFT_DEMO`, `DEMO_MODE`) | `false` | Demo-Konten anlegen |
+| `DEMO_RESET_MINUTES` | `20` | Demo-Modus: periodischer Reset auf die Beispieldaten (`0` = aus). Feste IDs der Demo-Konten (`usr_demo_admin`, `usr_demo_user`) halten Sitzungen gültig; laufende Anfragen sperren den Reset (`internal/api/demo.go`, Streams ausgenommen); danach `DEMO_RESET` an alle Verbindungen, `/auth/status` liefert `demoNextReset`/`demoResetInSeconds`. |
 | `SMTP_HOST`, `SMTP_PORT`, `SMTP_USER`, `SMTP_PASS`, `SMTP_FROM`, `SMTP_TLS` | leer / `587` / `true` | Mailversand, auch im Admin-UI einstellbar |
 | `SMTP_SKIP_VERIFY` | `false` | Zertifikat des Mailservers nicht prüfen (nur interne Server mit selbstsigniertem Zertifikat) |
 | `LEGAL_IMPRINT_URL`, `LEGAL_PRIVACY_URL` | leer | Impressum/Datenschutz als externer Link (nur `http(s)`) |
@@ -74,7 +77,8 @@ Hinweis: `DATABASE_URL` mit `postgres…` führt dazu, dass der Standardpfad in
 ## Authentifizierung
 
 - **Login** mit E-Mail, Benutzername (aus dem E-Mail-Präfix) oder `login`. Passwörter: bcrypt (`DefaultCost`).
-- **JWT:** HS256, Laufzeit 30 Tage, Claims `userId`, `email`, `displayName`, `tokenVersion`, `jti`. Gültig nur, wenn Token nicht in `revoked_tokens` steht, das Konto aktiv ist und `tokenVersion` mit `users.token_version` übereinstimmt. `token_version` wird bei Passwortänderung, Rollenwechsel, Deaktivierung und „Alle Sitzungen beenden“ erhöht.
+- **Login-Sperre:** Fehlversuche zählen im Speicher in drei Töpfen: Konto + Adresse (3), Konto (20), Adresse (30), je innerhalb von 15 Minuten; ist einer voll, gibt es 15 Minuten lang `429` mit `Retry-After`. Unbekannte Namen zählen wie Konten (kein Erraten, welche existieren). Erfolg leert die Kontotöpfe, ein Passwort-Reset (Mail oder Admin) hebt die Sperre auf. Die Client-Adresse kommt nur von vertrauenswürdigen Proxys (`TRUSTED_PROXIES`).
+- **JWT:** HS256, Laufzeit 30 Tage, Claims `userId`, `email`, `displayName`, `tokenVersion`, `jti`. Gültig nur, wenn Token nicht in `revoked_tokens` steht, das Konto aktiv ist und `tokenVersion` mit `users.token_version` übereinstimmt. Neue Passwörter brauchen mindestens 8 Zeichen (`auth.ValidatePassword`). `token_version` wird bei Passwortänderung, Rollenwechsel, Deaktivierung und „Alle Sitzungen beenden“ erhöht.
 - **Logout** schreibt den Token-Hash in `revoked_tokens`.
 - **API-Keys:** `mindsift_sec_<hex>`, gespeichert als SHA-256, nur das Präfix bleibt sichtbar. Der Key gilt als Bearer-Token oder in `X-API-Key` und darf nur Daten anliefern (`POST /inbox`, `POST /webhooks/ingest`); alle anderen Endpunkte antworten mit `403` ([FLAW-07](flaws.md)).
 - **Passwort vergessen:** nur wenn SMTP und `BASE_URL` gesetzt sind (nicht im Demo-Modus; `passwordReset` in `/auth/status`). `POST /auth/forgot-password` antwortet immer gleich und verschickt die Mail im Hintergrund, höchstens alle 2 Minuten pro Konto. Der Link `BASE_URL/?resetToken=…` gilt eine Stunde und einmal; gespeichert wird nur der SHA-256-Hash (`password_reset_tokens`). `POST /auth/reset-password` setzt das Passwort, entwertet alle offenen Links des Kontos und erhöht `token_version` (alle Sitzungen enden). Die App entfernt den Token sofort aus der Adresszeile.
@@ -82,7 +86,7 @@ Hinweis: `DATABASE_URL` mit `postgres…` führt dazu, dass der Standardpfad in
 
 ## Hintergrundjob: Alarme
 
-`startAlarmTicker` prüft jede Minute alle offenen, noch nicht gemeldeten Aufgaben mit Fälligkeit. Ist der Alarmzeitpunkt erreicht (Fälligkeit mit Uhrzeit bzw. 9:00 bei ganztägigen Aufgaben, minus Vorlaufzeit des Benutzers, Zeitzone `TZ`), sendet er über die Kanäle des Benutzers (`email`, `discord`, `webhook`) und setzt `alarm_sent`, sobald mindestens ein Kanal erfolgreich war. Details und Einschränkungen: [modules/tasks.md](modules/tasks.md), [FLAW-12](flaws.md).
+`startAlarmTicker` prüft jede Minute alle offenen, noch nicht gemeldeten Aufgaben mit Fälligkeit. Ist der Alarmzeitpunkt erreicht (Fälligkeit mit Uhrzeit bzw. 9:00 bei ganztägigen Aufgaben, minus Vorlaufzeit des Benutzers, Zeitzone `TZ`), sendet er über die Kanäle des Benutzers (`email`, `discord`, `webhook`) und setzt `alarm_sent`, sobald mindestens ein Kanal erfolgreich war. Nach 3 Durchläufen ohne Erfolg gibt er auf (`alarm_failures`). Details und Einschränkungen: [modules/tasks.md](modules/tasks.md), [FLAW-12](flaws.md).
 
 ## Hintergrundjob: Verdichtung der Notiz-Synchronisation
 
@@ -102,6 +106,14 @@ Die angezeigte Version (Kopf der App) setzt der Build-Parameter `APP_VERSION`: D
 
 Die Tests laufen beim Image-Build (Frontend: `npm run test:run`, Backend: `go test -v ./...`); ein Fehler bricht den Build ab. Frontend-Tests liegen unter `frontend/src/**/__tests__/` (Vitest + jsdom + Testing Library, Setup in `frontend/src/test/setup.ts`).
 
+## Hintergrundjob: Backups
+
+[backups.go](../internal/api/backups.go) / [backup.go](../internal/storage/backup.go): Ist „Automatische Backups“ in den Admin-Einstellungen an, läuft einmal täglich zur eingestellten Uhrzeit (`backup_time`, Zeitzone `TZ`; nach einem Neustart wird ein verpasster Lauf am selben Tag nachgeholt):
+- `backups/system/mindsift-db-JJJJ-MM-TT-HHMM.db.gz`: Abzug der ganzen Datenbank per `VACUUM INTO` (stimmig, auch während geschrieben wird), gzip.
+- `backups/users/<id>/mindsift-backup-….zip`: dasselbe ZIP wie „Backup herunterladen“ für jedes aktive Konto.
+- Danach werden Dateien älter als `backup_retention_days` (Standard 3) gelöscht. Dateien entstehen über `.part` und Umbenennen, halbe Backups tauchen nie in der Liste auf. Die API liefert nur Dateien mit genau diesem Namensmuster aus.
+- Im Demo-Modus läuft kein Zeitplan. Zurückspielen eines Datenbank-Abzugs: Container stoppen, `mindsift.db` durch die entpackte Datei ersetzen, starten. Benutzer spielen ihre eigenen Backups in den Kontoeinstellungen ein, auch nur für einzelne Bereiche (Notizen, Aufgaben, Listen, Inbox, Themes).
+
 ## Offline (PWA)
 
 - **Service Worker** ([public/sw.js](../frontend/public/sw.js)): Seitenaufrufe Network-First mit der zuletzt geladenen `index.html` als Rückfall, Bundles unter `/assets/` (Hash im Namen) aus dem Cache, Icons und Manifest Stale-While-Revalidate. API-Anfragen fasst er nie an. Alte Caches verschwinden beim Aktivieren einer neuen `VERSION`, Bundles sind auf 80 Einträge begrenzt.

Doku/database.md

@@ -20,7 +20,7 @@ Die Datei `migrations/001_init.sql` wird vom Code **nicht** gelesen und ist vera
 | Tabelle | Zweck | Wichtige Spalten |
 |---|---|---|
 | `password_reset_tokens` | Links aus „Passwort vergessen?“ | `token_hash` (SHA-256), `user_id`, `created_at`, `expires_at` (1 h), `used_at` |
-| `thoughts` | Gedanken **und** Aufgaben in einer Tabelle | `status` (`inbox`/`kept`/`converted`/`discarded`), `converted_type` (`task`/`document`/`list_item`/`document_block`), `converted_ref_id`, `priority`, `is_completed`, `due_date` (`YYYY-MM-DD` ganztägig oder `YYYY-MM-DDTHH:MM`, Zeitzone des Servers), `task_list_id`, `kanban_status`, `notes`, `subtasks` (JSON), `tags` (JSON), `alarm_sent`, `sort_order`, `source` (`manual`, `voice`, `webhook` …) |
+| `thoughts` | Gedanken **und** Aufgaben in einer Tabelle | `status` (`inbox`/`kept`/`converted`/`discarded`), `converted_type` (`task`/`document`/`list_item`/`document_block`), `converted_ref_id`, `priority`, `is_completed`, `due_date` (`YYYY-MM-DD` ganztägig oder `YYYY-MM-DDTHH:MM`, Zeitzone des Servers), `task_list_id`, `kanban_status`, `notes`, `subtasks` (JSON), `tags` (JSON), `alarm_sent`, `alarm_failures` (erfolglose Alarm-Durchläufe, ab 3 aufgegeben), `sort_order`, `source` (`manual`, `voice`, `webhook` …) |
 | `task_assignees` | Zuweisungen von Aufgaben | `task_id` (FK `thoughts`, `ON DELETE CASCADE`), `user_id`, `created_at`; nur Personen mit Zugriff auf die Liste, bereinigt durch `PruneTaskAssignees` |
 | `task_lists` | Aufgabenlisten | `user_id` (Eigentümer), `title`, `icon`, `color`, `columns` (JSON, Kanban-Spalten) |
 | `task_list_shares` | Freigaben von Aufgabenlisten | `target_type` (`team`/`user`), `target_id`, **`permission`** (`editor`/`viewer`, Standard `editor`) |
@@ -81,7 +81,7 @@ teams 1─n team_members n─1 users
 - `users.username` wird aus dem E-Mail-Präfix aufgefüllt.
 - Notiz-Synchronisation (`migrateDocSync`): neue Spalten an `blocks` (inkl. `deleted_at`; vorhandene Grabsteine erhalten den Migrationszeitpunkt) und `documents` (`head_seq`, `title_version`, `log_floor`), Tabellen `doc_ops` und `doc_op_results`. Blöcke im alten flachen Format (nur `level`/`position`) werden einmalig in den Baum umgewandelt.
 - Standardwerte in `system_settings` (`INSERT OR IGNORE`): `sharing_mode=organizations`, `allow_registration=false`, `instance_name=MindSift`, SMTP leer.
-- **Schema-Version:** `PRAGMA user_version` hält `schemaVersion` (derzeit 2), damit spätere Versionen erkennen, welche Migrationen eine Datenbank schon hat. Daten werden beim Start nie gelöscht (das einmalige Zurücksetzen auf Version 2 ist entfernt, alle Installationen sind darüber hinweg). Nur der Demo-Modus leert die Datenbank bei jedem Start.
+- **Migrationen:** [migrations.go](../internal/storage/migrations.go) führt nummerierte Schritte genau einmal aus und vermerkt sie in `schema_migrations` (`id`, `name`, `applied_at`); `PRAGMA user_version` zeigt die höchste angewandte Nummer. Schritt 3 („Basis-Schema v0.4.1“, `migrateBaseline`) baut das komplette Schema auf und bringt ältere Datenbanken auf diesen Stand; Spalten werden nur angelegt, wenn sie fehlen. Schlägt ein Schritt fehl, bricht der Start mit der Fehlermeldung ab, statt mit halbem Schema weiterzulaufen. Neue Änderungen kommen als neuer Schritt ans Ende, alte Schritte werden nie verändert. Daten werden beim Start nie gelöscht; nur der Demo-Modus leert die Datenbank.
 
 ## Sicherung
 

Doku/flaws.md

@@ -16,26 +16,26 @@ Schweregrade: **Hoch** (Datenabfluss oder Rechteumgehung möglich), **Mittel** (
 | FLAW-04 | Auth | ~~Fest eincodiertes Fallback-`JWT_SECRET`~~ | **Behoben** |
 | FLAW-05 | Benachrichtigungen | ~~Discord-/Webhook-URLs ungeprüft (SSRF)~~ | **Behoben** |
 | FLAW-06 | Aufgaben | ~~Jeder Editor einer Aufgabenliste kann sie per `teamId` an weitere Gruppen freigeben~~ | **Behoben** |
-| FLAW-07 | Auth | ~~Ein API-Key ist ein Vollzugriff~~ – Keys dürfen nur noch einliefern; Scopes fehlen noch | Niedrig |
+| FLAW-07 | Auth | ~~Ein API-Key ist ein Vollzugriff~~ | **Behoben** |
 | FLAW-08 | Auth | ~~Webhook-Ingest mit JWT prüft weder Sperrliste noch `token_version` noch `is_active`~~ | **Behoben** |
-| FLAW-09 | Auth | Kein Rate-Limit, keine Sperre bei Fehlversuchen, Mindestpasswort 4 Zeichen | Mittel |
+| FLAW-09 | Auth | ~~Kein Rate-Limit, keine Sperre bei Fehlversuchen, Mindestpasswort 4 Zeichen~~ | **Behoben** |
 | FLAW-10 | Freigaben | ~~`sharing_mode` wird bei Freigaben nicht durchgesetzt; Benutzerverzeichnis leakt alle Konten~~ | **Behoben** |
 | FLAW-11 | Workspace | ~~Block-Upsert (`ON CONFLICT(id)`) prüft das Dokument nicht~~ | **Behoben** |
-| FLAW-12 | Benachrichtigungen | ~~`notify_before_minutes` wirkungslos; Alarm feuert nach Umplanung nie wieder~~; kein Backoff bei Fehlern | **Teilweise behoben** |
+| FLAW-12 | Benachrichtigungen | ~~`notify_before_minutes` wirkungslos; Alarm feuert nach Umplanung nie wieder; endlose Wiederholung bei Fehlern~~ | **Behoben** |
-| FLAW-13 | Datenbank | Keine Schema-Versionierung; Migrationsfehler werden verschluckt; `migrations/001_init.sql` ist toter Code | Mittel |
+| FLAW-13 | Datenbank | ~~Keine Schema-Versionierung; Migrationsfehler werden verschluckt; `migrations/001_init.sql` ist toter Code~~ | **Behoben** |
-| FLAW-14 | Backend | Fehler von Schreiboperationen werden häufig ignoriert (`_, _ =`) | Mittel |
+| FLAW-14 | Backend | ~~Fehler von Schreiboperationen werden häufig ignoriert (`_, _ =`)~~ | **Behoben** |
 | FLAW-15 | Realtime | ~~`WriteTimeout` von 30 s beendet SSE-Streams~~ | **Behoben** |
-| FLAW-16 | Setup | `/auth/setup` ist bis zum ersten Konto offen; Demo-Modus legt `admin/admin` an | Mittel |
 | FLAW-17 | Workspace | ~~Bearbeiter-Freigaben für Notizen nicht wählbar~~ | **Behoben** |
 | FLAW-18 | Suche | ~~Nur eigene Gedanken und Dokumente, `LIKE` ohne Escaping, keine FTS~~ | **Behoben** |
-| FLAW-19 | Qualität | Frontend-Tests nur für den Outliner, `lint` ist ein Platzhalter | Niedrig |
+| FLAW-19 | Qualität | ~~Frontend-Tests nur für den Outliner, `lint` ist ein Platzhalter~~ | **Behoben** |
-| FLAW-20 | Qualität | ~~Sehr große Dateien~~; duplizierte Zugriffslogik | Niedrig |
+| FLAW-20 | Qualität | ~~Große Go-Dateien, duplizierte Zugriffslogik~~; große Frontend-Dateien | Niedrig |
-| FLAW-21 | Repo | `LICENSE` fehlt, obwohl README MIT angibt | Niedrig |
+| FLAW-21 | Repo | ~~`LICENSE` fehlt, obwohl README MIT angibt~~ | **Behoben** |
-| FLAW-22 | Netzwerk | Token in der URL (WS/SSE), CORS `*`, `CheckOrigin` immer `true` | Niedrig |
+| FLAW-22 | Netzwerk | ~~Token in der URL (WS/SSE), CORS `*`, `CheckOrigin` immer `true`~~ | **Behoben** |
-| FLAW-23 | SQLite | Single-Writer-Engpass bei vielen gleichzeitigen Schreibern | Niedrig |
+| FLAW-23 | SQLite | ~~`SQLITE_BUSY` bei vielen gleichzeitigen Schreibern~~ | **Behoben** |
 | FLAW-24 | Gruppen | ~~Organisations-Endpunkte ohne Berechtigungsprüfung~~ | **Behoben** |
 | FLAW-25 | Workspace | ~~Struktur-Aktionen an fremd gesperrten Bullets nur teilweise ausgeführt~~ | **Behoben** |
 | FLAW-26 | Workspace | ~~Nach Enter landet sehr schnell Getipptes noch im vorherigen Bullet~~ | **Behoben** |
+| FLAW-27 | Listen | ~~Listeneinträge ohne Berechtigungsprüfung änderbar (IDOR)~~ | **Behoben** |
 
 ---
 
@@ -78,7 +78,7 @@ Schweregrade: **Hoch** (Datenabfluss oder Rechteumgehung möglich), **Mittel** (
 - **Maßnahme:** `teamId`-Änderungen nur für den Eigentümer; das Legacy-Feld `task_lists.team_id` zugunsten von `task_list_shares` abschaffen.
 
 ### FLAW-07: API-Key-Scopes ohne Wirkung
-- **Teilweise behoben:** API-Keys dürfen nur noch `POST /inbox` und `POST /webhooks/ingest` nutzen (`apiKeyAllowed` in `server.go`), alles andere gibt `403`. Auswählbare Scopes (Triage, Aufgaben, Listen) stehen noch aus.
+- **Status: Behoben.** API-Keys dürfen nur `POST /inbox` und `POST /webhooks/ingest` nutzen (`apiKeyAllowed`), und nur für die Ziele ihrer Scopes: `webhook:triage`, `webhook:task`, `webhook:list` (`requireDeliveryScope`, sonst `403`). Live-Streams (WebSocket/SSE) nehmen keine Keys an. Alte Keys bekamen `webhook:triage`. Auswahl und Badges in den Kontoeinstellungen. Test: `TestAPIKeysOnlyDeliverData`.
 - **Fundstellen:** Tabelle `api_keys.scopes` (Standard `ingest,read`), `authMiddleware`.
 - **Problem:** Ein Key mit Präfix `mindsift_sec_` authentifiziert als der Benutzer, mit allen Rechten: alle `/api/v1`-Routen, bei Admins auch `/admin/*`, außerdem das Anlegen weiterer Keys. Für Webhooks (nur Aufgaben anlegen) ist das überdimensioniert.
 - **Maßnahme:** Scopes auswerten; Keys standardmäßig nur auf `/inbox` und `/webhooks/ingest` beschränken.
@@ -90,6 +90,8 @@ Schweregrade: **Hoch** (Datenabfluss oder Rechteumgehung möglich), **Mittel** (
 - **Maßnahme:** Dieselbe Prüfkette wie in `authMiddleware` verwenden (gemeinsame Funktion statt Kopien; siehe auch `authenticateUserFromReq`).
 
 ### FLAW-09: Kein Schutz gegen Brute-Force
+- **Status: Behoben.** Login-Sperre nach Fehlversuchen (Konto + Adresse 3, Konto 20, Adresse 30, je 15 Minuten, `429` mit `Retry-After`); `X-Forwarded-For` wird nur noch von vertrauenswürdigen Proxys übernommen (`TRUSTED_PROXIES`). Abschaltbar mit `LOGIN_PROTECTION=false`. Tests: `internal/api/loginguard_test.go`.
+- Neue Passwörter brauchen überall mindestens 8 Zeichen (Setup, Registrierung, Profil, Admin-Anlage und -Reset, Reset per Mail), geprüft zentral in `auth.ValidatePassword` und vorab im Browser (`lib/password.ts`). Bestehende kürzere Passwörter funktionieren beim Anmelden weiter.
 - **Fundstellen:** `handleLogin`, `handleRegister`, `handleFirstBootSetup`.
 - **Problem:** Weder Rate-Limit noch Sperre; `middleware.RealIP` vertraut `X-Forwarded-For` ungeprüft. Mindestpasswortlänge ist 4 Zeichen. Der Login-Pfad ist so über das Internet raten- und durchprobierbar.
 - **Maßnahme:** Rate-Limit je IP und Konto, längeres Mindestpasswort.
@@ -110,7 +112,7 @@ Schweregrade: **Hoch** (Datenabfluss oder Rechteumgehung möglich), **Mittel** (
 - **Maßnahme:** `DO UPDATE … WHERE blocks.document_id = excluded.document_id`; fremde IDs ablehnen.
 
 ### FLAW-12: Alarm-Logik
-- **Teilweise behoben:** Fälligkeiten haben eine optionale Uhrzeit; der Alarm kommt zur Uhrzeit (ganztägig 9:00) minus `notify_before_minutes`, in der Zeitzone `TZ` (Standard Europe/Berlin, Zeitzonendaten eingebettet). Neue Fälligkeit oder Wiederöffnen setzt `alarm_sent` zurück. Tests: `internal/domain/due_test.go`, `internal/api/alarm_test.go`, `TestAlarmResetsOnNewDueDateOrReopen`. Offen bleibt der letzte Punkt (kein Backoff).
+- **Status: Behoben.** Fälligkeiten haben eine optionale Uhrzeit; der Alarm kommt zur Uhrzeit (ganztägig 9:00) minus `notify_before_minutes`, in der Zeitzone `TZ` (Standard Europe/Berlin, Zeitzonendaten eingebettet). Neue Fälligkeit oder Wiederöffnen setzt `alarm_sent` und `alarm_failures` zurück. Nach 3 Durchläufen, in denen kein Kanal zustellt, wird der Alarm aufgegeben (Warnung im Log). Tests: `internal/domain/due_test.go`, `internal/api/alarm_test.go`, `TestAlarmResetsOnNewDueDateOrReopen`, `TestAlarmGivesUpAfterThreeFailedRuns`.
 - **Fundstellen:** `startAlarmTicker`, `GetDueTasksForAlarm`, `UpdateThoughtDetails`, `UserSettingsView`.
 - **Probleme:**
   - `notify_before_minutes` (Einstellungen: „15 Minuten vorher“ usw.) wird nirgends gelesen. Fälligkeiten haben nur ein Datum (`YYYY-MM-DD`), eine Vorlaufzeit ist damit nicht abbildbar.
@@ -120,8 +122,8 @@ Schweregrade: **Hoch** (Datenabfluss oder Rechteumgehung möglich), **Mittel** (
 - **Maßnahme:** Fälligkeit mit Uhrzeit speichern, `alarm_sent` bei Änderung von `due_date` zurücksetzen, Wiederholungen begrenzen.
 
 ### FLAW-13: Migrationen
-- **Teilweise behoben:** Das Schema hat eine Version (`PRAGMA user_version`, `schemaVersion` in `sqlite.go`), auf die künftige Migrationen aufsetzen können. Die übrigen Punkte unten gelten weiter.
+- **Status: Behoben.** `schema_migrations` mit nummerierten, einmalig ausgeführten Schritten ([migrations.go](../internal/storage/migrations.go)); das bisherige Schema ist Schritt 3 (Baseline). Spalten werden nur angelegt, wenn sie fehlen, alle anderen Fehler brechen den Start ab; Bereinigungen laufen nicht mehr bei jedem Start. `migrations/001_init.sql` ist entfernt. Test: `TestMigrationsRunOnceAndRepairOldDatabases`.
-- **Fundstellen:** `Store.migrate` in [`internal/storage/sqlite.go`](../internal/storage/sqlite.go), [`migrations/001_init.sql`](../migrations/001_init.sql).
+- **Fundstellen (damals):** `Store.migrate` in `internal/storage/sqlite.go`, `migrations/001_init.sql`.
 - **Probleme:**
   - Es gibt keine Versionstabelle. Alle `ALTER TABLE`-Anweisungen laufen bei jedem Start erneut; Fehler werden pauschal ignoriert (`_, _ = s.db.Exec(q)`), echte Fehler fallen nicht auf.
   - Mehrere `UPDATE`/`DROP TABLE`-Bereinigungen laufen bei jedem Start.
@@ -129,6 +131,9 @@ Schweregrade: **Hoch** (Datenabfluss oder Rechteumgehung möglich), **Mittel** (
 - **Maßnahme:** `schema_migrations`-Tabelle mit nummerierten, einmalig ausgeführten Schritten; die SQL-Datei entweder einbetten oder entfernen.
 
 ### FLAW-14: Verschluckte Fehler
+- **Status: Behoben.** Mehrstufige Änderungen laufen in einer Transaktion (`Store.execInTx`, ganz oder gar nicht) und geben Fehler zurück: Ordner löschen (inkl. Papierkorb), Ordner verschieben, geteilte Ordner anlegen/abgleichen/löschen, Ordner-Freigaben und -Einhängungen, Aufgabenliste löschen, Konto löschen, Anheften, Passwort-Reset (neues Passwort und Entwerten aller Links zusammen). Einzelne Schreibvorgänge, deren Erfolg die API meldet (Abmelden, neues Passwort, Ersteinrichtung, Freigabe-Modus, Gruppe anlegen, Wiederherstellen, Verknüpfung lösen), geben ihren Fehler an den Client. Folgeaufgaben und Alarm-Markierungen protokollieren Fehler. Test: `TestMultiStepChangesAreAllOrNothing`.
+- **Bewusst ohne Fehlerbehandlung** (Ausfall ändert nichts Wichtiges): `updated_at`-Stempel von Listen, „zuletzt genutzt“ bei API-Keys, Aufräumen abgelaufener Tokens, Beispieldaten und Demo-Konten, einzelne Schritte des Markdown-Imports (sie landen als „übersprungen“ im Bericht).
+- **Nebenbefund (behoben):** `DeleteTaskList` löste alle Aufgaben aus der Liste, **bevor** geprüft wurde, ob der Aufrufer Eigentümer ist; ein Fremder mit der Listen-ID konnte sie so leeren. Ebenso konnten Leser einer Aufgabenliste die Verknüpfung Notiz ↔ Aufgabe lösen.
 - **Fundstellen:** u. a. `PatchDocumentBlocks` (Upserts/Deletes), `AddTaskListShare`, `RemoveTaskListShare`, viele `_, _ = s.db.Exec`.
 - **Problem:** Scheitert ein Schreibzugriff (z. B. `SQLITE_BUSY`), antwortet die API trotzdem mit Erfolg und broadcastet den Stand, der nie gespeichert wurde. Fehler lassen sich nur schwer nachvollziehen.
 - **Beispiel (behoben):** Das Lösen der Verknüpfung zwischen Notiz-Block und Aufgabe („Verknüpfung aufheben“, Löschen eines verknüpften Blocks) schrieb in nicht existierende Spalten `thoughts.doc_id`/`block_id`. Der Fehler wurde verschluckt, die Funktion war nie wirksam. Korrigiert; im neuen Sync-Weg gleicht `ReconcileDocTaskLinks` Häkchen und gelöschte Blöcke ab.
@@ -140,11 +145,6 @@ Schweregrade: **Hoch** (Datenabfluss oder Rechteumgehung möglich), **Mittel** (
 - **Problem:** Go beendet nach diesem Zeitraum das Schreiben der Antwort. Für den SSE-Fallback (`ServeSSE`) bedeutet das voraussichtlich einen Verbindungsabbruch alle 30 s. WebSockets sind durch Hijacking nicht betroffen. Der Client verbindet sich neu, daher fällt es kaum auf.
 - **Maßnahme:** Im SSE-Handler `http.ResponseController.SetWriteDeadline(time.Time{})` setzen oder `WriteTimeout` für diese Route aufheben.
 
-### FLAW-16: Ersteinrichtung und Demo-Modus
-- **Fundstellen:** `handleFirstBootSetup`, `Store.EnsureDemoAccounts`, `config.Load` (`MINDA_DEMO`, `MINDSIFT_DEMO`, `DEMO_MODE`).
-- **Probleme:** Solange kein Konto existiert, kann jeder `POST /auth/setup` aufrufen und wird Administrator. Mit gesetztem Demo-Flag entstehen Konten `admin/admin` und `user/user`; versehentlich auf einer öffentlichen Instanz aktiv wäre das eine Komplettübernahme.
-- **Maßnahme:** Setup per einmaligem Token aus dem Server-Log absichern; Demo-Modus nur zusammen mit expliziter Warnung/Bestätigung.
-
 ### FLAW-17: Schreibgeschützte Dokumentfreigaben
 - **Status: Behoben.** Zwangsmigration entfernt, Backend prüft Bearbeiter-Rechte (`DocRole`, `/docs/{id}/sync`), der Editor speichert über die Sync-Engine, und der Freigabe-Dialog bietet „Bearbeiten“ an. Browser-Test: `e2e/share.e2e.mjs`.
 - **Fundstellen:** Migration in `Store.migrate` (`UPDATE doc_shares SET permission = 'read' …`, ebenso `doc_team_shares`, `workspace_folder_shares`), `PatchDocumentBlocks`/`UpdateDocument` (nur Eigentümer).
@@ -156,26 +156,30 @@ Schweregrade: **Hoch** (Datenabfluss oder Rechteumgehung möglich), **Mittel** (
 - **Fundstellen:** `internal/storage/search.go`, `internal/api/server.go`, `frontend/src/components/CommandPalette.tsx`.
 
 ### FLAW-19: Geringe Frontend-Testabdeckung
+- **Status: Behoben.** `npm run lint` ist echtes ESLint (`eslint.config.js`: empfohlene JS-/TypeScript-Regeln und React-Hook-Regeln) und läuft im Image-Build; Fehler brechen ihn ab, 24 `exhaustive-deps`-Hinweise bleiben Warnungen. ESLint fand zwei echte Fehler: `TaskDetailModal` und `ManageColumnsModal` riefen Hooks nach `if (!isOpen) return null` auf. Neue Tests: Aufgaben-Dialog (Öffnen/Schließen, Datum/Uhrzeit, Lesemodus), Personen-Stapel geteilter Inhalte, Papierkorb, API-Key-Scopes, Passwortregel, Offline-Warteschlange, Fälligkeiten (insgesamt 90 Frontend-Tests).
 - **Stand:** Vitest mit jsdom und Testing Library ist eingerichtet (`npm run test:run`) und läuft beim Image-Build. Getestet sind bisher nur Outliner-Funktionen (Backspace-Zusammenführen, Cursor-Position beim Klicken).
 - **Problem:** Aufgaben, Listen, Freigabe-Dialoge und Berechtigungsanzeigen sind ungetestet. `"lint"` in [`frontend/package.json`](../frontend/package.json) ist weiterhin ein Platzhalter (`echo`).
 - **Maßnahme:** Tests für kritische Pfade ergänzen, ESLint als echtes `lint`-Skript.
 
 ### FLAW-20: Dateigröße und Duplikate
-- **Teilweise behoben:** `sqlite.go` und `server.go` sind nach Bereichen in eigene Dateien aufgeteilt (reine Verschiebung, Verhalten unverändert; siehe [architecture.md](architecture.md#verzeichnisse)). Offen: große Frontend-Dateien und die doppelte Zugriffsabfrage.
+- **Teilweise behoben:** `sqlite.go` und `server.go` sind nach Bereichen in eigene Dateien aufgeteilt (reine Verschiebung, Verhalten unverändert; siehe [architecture.md](architecture.md#verzeichnisse)). Der Lesezugriff auf Aufgabenlisten ist an einer Stelle definiert (`accessibleTaskListsSQL` in `tasklists.go`), die drei Kopien sind weg. Offen: `WorkspaceView.tsx` (≈ 2.200 Zeilen), `TasksView.tsx` (≈ 2.400) und `api.ts` (≈ 1.600) sind weiterhin groß.
 - `internal/storage/sqlite.go` (≈ 5.600 Zeilen), `internal/api/server.go` (≈ 3.000), `WorkspaceView.tsx` (≈ 2.300), `TasksView.tsx` (≈ 2.500), `api.ts` (≈ 1.500).
 - Die Zugriffsabfrage für Aufgabenlisten steht dreimal fast identisch im Code (`accessibleTaskListIDsQuery`, `GetTaskLists`, `GetTaskListByID`). Dokumentzugriff ist ähnlich verteilt. Änderungen an Berechtigungen müssen an mehreren Stellen erfolgen und werden leicht vergessen.
 - **Maßnahme:** In Teilmodule zerlegen (Auth, Dokumente, Aufgaben, Listen, Teams), Zugriffsprüfung zentralisieren.
 
 ### FLAW-21: Lizenzdatei fehlt
+- **Status: Behoben.** MindSift steht unter der Unlicense (gemeinfrei); `LICENSE` liegt im Repository, README verweist darauf.
 - README und Badge nennen die MIT-Lizenz und verlinken auf `LICENSE`; die Datei existiert nicht im Repository.
 
 ### FLAW-22: Netzwerk-Details
+- **Status: Behoben.** WebSocket/SSE nutzen Einmal-Tickets (60 s, einmalig, an `token_version` gebunden) statt des Sitzungs-Tokens in der URL; `?token=` wird für Streams nicht mehr angenommen. Mit `BASE_URL` erlaubt CORS nur diese Adresse und der WebSocket nur sie oder den angefragten Host; Credentials sind generell aus (es gibt keine Cookies). Logout, „Alle Sitzungen beenden“, Passwortwechsel und Deaktivierung trennen alle Streams des Kontos (`Hub.DisconnectUser`). Tests: `streamticket_test.go`, `TestLogoutEndsLiveStreams`. Ohne `BASE_URL` bleibt die Origin-Prüfung aus, weil Proxys den `Host` oft umschreiben.
 - `authenticateUserFromReq` akzeptiert das Token als `?token=` (nötig für `WebSocket`/`EventSource`, die keine Header setzen). Tokens landen dadurch in Proxy- und Zugriffslogs.
 - `AllowedOrigins: ["*"]` (Auth läuft über `Authorization`-Header, nicht über Cookies, das Risiko ist daher begrenzt) und `CheckOrigin` liefert immer `true`.
 - Ein einmal verbundener WebSocket/SSE-Stream wird bei Logout oder Token-Widerruf nicht getrennt.
 - **Maßnahme:** Kurzlebiges, einmaliges Stream-Ticket statt Langzeit-JWT in der URL; Origin gegen `BASE_URL` prüfen.
 
 ### FLAW-23: SQLite-Schreibengpass
+- **Status: Behoben.** Transaktionen starten mit der Schreibsperre (`_txlock=immediate` im DSN). Vorher scheiterte eine Transaktion, die erst liest und dann schreibt, sofort mit `SQLITE_BUSY`, sobald jemand anderes schrieb (`busy_timeout` greift in diesem Fall nicht); im Lasttest 12 von 480 Schreibvorgängen. Jetzt warten Schreiber bis zu 10 s auf ihren Platz. Es bleibt ein Schreiber zur Zeit, für Familien und Teams ausreichend. Test: `TestConcurrentWritersDoNotFail`.
 - Eine SQLite-Datei (WAL, `busy_timeout`, bis zu 8 offene Verbindungen) erlaubt nur einen gleichzeitigen Schreiber. Für Familien und kleine Teams unkritisch; bei vielen aktiven Editoren sind `SQLITE_BUSY`-Fehler möglich, die wegen FLAW-14 stumm bleiben.
 
 ### FLAW-24: Organisations-Endpunkte ohne Berechtigungsprüfung
@@ -206,3 +210,8 @@ Schweregrade: **Hoch** (Datenabfluss oder Rechteumgehung möglich), **Mittel** (
 ## Aus der früheren Fassung entfernt
 
 Die frühere `flaws.md` führte als „gelöst“, was im Code nicht existiert: In-Memory-DocRooms, `clientId`-Echo-Schutz, Cursor-Presence, 1,5-s-Debounce-Flush, `internal/ws/docroom.go`, `frontend/src/lib/useDocumentSync.ts` und Yjs/CRDT. Der Code enthält nur noch `internal/ws/hub.go` (Räume, Benutzer-Kanäle, SSE-Fallback). Die CRDT-Tabellen werden beim Start gelöscht (`DROP TABLE document_crdt_*`). Dokumente werden per REST gespeichert (`PATCH /documents/{id}/blocks`) und als `DOC_BLOCKS_PATCHED` verteilt. Die frühere Aussage zur Token-Versionierung (`token_version`, `revoked_tokens`) trifft dagegen zu und ist in [sharing-and-permissions.md](sharing-and-permissions.md) und [architecture.md](architecture.md) beschrieben.
+
+### FLAW-27: Listeneinträge ohne Berechtigungsprüfung
+- **Status: Behoben.** Gefunden beim Bau der API-Key-Scopes (Oktober 2026).
+- **Problem:** `POST/PATCH/PUT/DELETE /lists/{id}/items…`, `…/items/reorder` und `…/clear-completed` prüften weder den Zugriff auf die Liste noch, ob der Eintrag zu ihr gehört. Jeder angemeldete Nutzer mit einer Listen- oder Eintrags-ID konnte Einträge anlegen, abhaken, ändern und löschen, auch Leser einer geteilten Liste. Ebenso ließ sich ein Gedanke in einen Eintrag einer fremden Liste umwandeln.
+- **Behebung:** `Store.ListRole` / `EnsureListItemsWritable` (Eigentümer oder Bearbeiter, Eintrag muss zur Liste gehören) in allen Eintrags-Handlern und in `UpdateThoughtTriage`; ohne Zugriff `404`, als Leser `403`. Test: `TestListItemsNeedWriteAccess`.

Doku/modules/tasks.md

@@ -57,6 +57,6 @@ Danach wird `alarm_sent = 1` gesetzt, sobald mindestens ein Kanal erfolgreich wa
 - `SMTP_SKIP_VERIFY` / Schalter „Zertifikatsprüfung deaktivieren“ akzeptiert selbstsignierte Zertifikate (Verbindung bleibt verschlüsselt).
 - Fehler nennen den Schritt, an dem der Server abgelehnt hat (z. B. `SMTP-Schritt RCPT TO fehlgeschlagen: 451 …`), im Log als `smtp_step`. Test: `internal/api/mail_test.go` mit einem Fake-Server (STARTTLS, 451).
 
-Eine neue Fälligkeit oder das Wiederöffnen einer Aufgabe setzt `alarm_sent` zurück, der Alarm kommt dann erneut. Offen ([FLAW-12](../flaws.md)): Schlagen alle Kanäle fehl, wird jede Minute erneut versucht. URLs werden geprüft ([FLAW-05](../flaws.md)).
+Eine neue Fälligkeit oder das Wiederöffnen einer Aufgabe setzt `alarm_sent` zurück, der Alarm kommt dann erneut. Schlagen alle Kanäle fehl, versucht der Ticker es in den nächsten Minuten erneut und gibt nach 3 erfolglosen Durchläufen auf (`alarm_failures`, Warnung im Server-Log); eine neue Fälligkeit oder das Wiederöffnen gibt wieder 3 Versuche ([FLAW-12](../flaws.md)). URLs werden geprüft ([FLAW-05](../flaws.md)).
 
 Die Oberfläche zeigt Fälligkeiten relativ („Heute, 14:30“, „Morgen“, „Fr., 30.10.“); überfällige offene Aufgaben (mit Uhrzeit minutengenau) sind rot. Gruppieren und Sortieren nach Fälligkeit berücksichtigen die Uhrzeit, ganztägige Aufgaben stehen vor denen mit Uhrzeit am selben Tag.

Doku/reverse-proxy.md

@@ -11,6 +11,20 @@ Dieses Dokument beschreibt die empfohlene Konfiguration von Reverse-Proxies und
 | **WebSockets** | 443 (WSS) / 80 (WS) | `Upgrade $http_upgrade`<br>`Connection "Upgrade"`<br>`proxy_read_timeout 3600s` | Bidirektionale Live-Updates (Aufgaben, Listen, Notizen) |
 | **Server-Sent Events (SSE)** | 443 (HTTPS) / 80 (HTTP) | `X-Accel-Buffering: no`<br>`proxy_buffering off`<br>`proxy_cache off` | Fallback bei blockiertem WebSocket-Upgrade |
 | **REST API & Uploads** | 443 (HTTPS) / 80 (HTTP) | `client_max_body_size 64M` | Notizen, Import/Export (JSON) |
+| **Client-IP** | – | `X-Real-IP` / `X-Forwarded-For` | Login-Sperre nach Fehlversuchen trifft den richtigen Absender |
+
+### Client-IP und `TRUSTED_PROXIES`
+
+MindSift sperrt Anmeldungen nach Fehlversuchen auch pro IP-Adresse. Hinter einem Proxy kommt jede Verbindung vom Proxy; die echte Adresse steht in `X-Forwarded-For` bzw. `X-Real-IP`. MindSift glaubt diesen Kopfzeilen nur, wenn die Verbindung von einem vertrauenswürdigen Proxy kommt, sonst könnte jeder, der den Port direkt erreicht, eine beliebige Adresse vortäuschen.
+
+| `TRUSTED_PROXIES` | Wirkung |
+|---|---|
+| `private` (Standard) | Proxys aus localhost, Docker- und Heimnetzen (`10.x`, `172.16–31.x`, `192.168.x`, `fd…`, `100.64.x`). Passt für Proxy im selben Docker-Netz oder auf demselben Host – nichts einzustellen. |
+| `private,198.51.100.0/24` | zusätzlich eigene Bereiche, z. B. ein externer Proxy-Server oder die [IP-Bereiche von Cloudflare](https://www.cloudflare.com/ips/) |
+| `all` | Kopfzeilen immer glauben (früheres Verhalten) – Notausgang, wenn die Erkennung Probleme macht |
+| `none` | Kopfzeilen nie glauben |
+
+Schickt ein vertrauenswürdiger Proxy gar keine Client-IP mit, steht einmal eine Warnung im Log, und für diese Anfragen gilt nur noch die Sperre pro Konto. Die ganze Login-Sperre lässt sich mit `LOGIN_PROTECTION=false` abschalten.
 
 ---
 
@@ -151,7 +165,8 @@ Wird MindSift hinter dem Cloudflare CDN betrieben:
    - Deaktiviere "Rocket Loader" für MindSift, da asynchrone Skripteingriffe den Start der Single-Page-App stören können.
 3. **Cloudflare WAF / Bot Fight Mode:**
    - Stelle sicher, dass `GET /api/v1/events` und `GET /api/v1/ws*` nicht von "Challenge"-Seiten blockiert werden.
-4. **SSE-Unterstützung:**
+4. **Client-IP:** Cloudflare liefert die Besucheradresse in `CF-Connecting-IP`/`X-Forwarded-For`. Spricht Cloudflare MindSift direkt an (ohne eigenen Proxy dazwischen), die Cloudflare-Bereiche in `TRUSTED_PROXIES` ergänzen.
+5. **SSE-Unterstützung:**
    - Cloudflare unterstützt Server-Sent Events nativ über HTTP/2 und HTTP/3. Dank der vom MindSift-Backend gesetzten Header `X-Accel-Buffering: no` und `Cache-Control: no-cache` streamt Cloudflare Echtzeit-Events verzögerungsfrei an die Clients.
 
 ---
@@ -221,7 +236,8 @@ curl -i -N \
   -H "Origin: https://mindsift.example.com" \
   -H "Sec-WebSocket-Key: SGVsbG8sIHdvcmxkIQ==" \
   -H "Sec-WebSocket-Version: 13" \
-  https://mindsift.example.com/api/v1/ws?token=<DEIN_TOKEN>
+  -H "Authorization: Bearer <DEIN_TOKEN>" \
+  https://mindsift.example.com/api/v1/ws
 ```
 *Erwartete Antwort:* `101 Switching Protocols`
 

Doku/theming.md

@@ -82,7 +82,7 @@ Jede Theme-Datei gliedert sich in sechs exakt definierte Bereiche:
 | `light` | [`theme-light.css`](../frontend/src/themes/theme-light.css) | Daylight Clean White / Minimalistisch | Modern dezent (`4px` Cards, `4px` Buttons) |
 | `high-contrast` | [`theme-high-contrast.css`](../frontend/src/themes/theme-high-contrast.css) | Reines Schwarz/Weiß mit AAA-Kontrast | Streng eckig (`0px`, kräftige Rahmen) |
 | `soft` | [`theme-soft.css`](../frontend/src/themes/theme-soft.css) | Warmes Soft Slate mit Indigo-Akzent | Weich gerundet (`12px` Cards, `8px` Buttons) |
-| `polarized` | [`theme-polarized.css`](../frontend/src/themes/theme-polarized.css) | Tiefdunkles Obsidian mit elektrischem Ultraviolett | Streng eckig (`0px` Cards, `2px` Buttons) |
+| `polarized` | [`theme-polarized.css`](../frontend/src/themes/theme-polarized.css) | Tiefdunkles Obsidian mit elektrischem Grün/Türkis | Streng eckig (`0px` Cards, `2px` Buttons) |
 | `suri` | [`theme-suri.css`](../frontend/src/themes/theme-suri.css) | Warmes Mitternachts-Pflaume mit samtiger Orchidee | Weich gerundet (`10px` Cards, `6px` Buttons) |
 | *Template* | [`theme-template.css`](../frontend/src/themes/theme-template.css) | Vollständig dokumentierte Kopiervorlage | Frei anpassbar |
 

Doku/ui-patterns.md

@@ -53,11 +53,11 @@ Komponente: [CountBadge.tsx](../frontend/src/components/CountBadge.tsx), CSS-Kla
 
 - **Form:** runder Kreis, mindestens 16 px, ab 100 als „99+“ (der Screenreader liest die echte Zahl). Bei 0 ausgeblendet, außer mit `showZero` (z. B. Mitgliederzahl, mobiles Menü).
 - **Farbe (`variant`):**
-  - `accent`: Hier wartet etwas auf dich. Navigationsleiste (Triage, Workspace, Aufgaben).
+  - `accent`: Hier wartet etwas auf dich. Navigationsleiste: Triage (Inbox), Aufgaben (offene Aufgaben), Listen (offene Einträge aller eigenen und geteilten Listen). Workspace hat keinen Zähler.
   - `muted` (Standard): reine Anzahl. Tabs der Aufgabenlisten und Listen, Organisationen, mobiles Menü.
   - Beide kommen aus den Theme-Variablen (`--accent-primary`/`--text-on-accent` bzw. `--text-muted`/`--bg-panel`) und passen sich damit jedem Theme an.
 - **Position (`position`):**
-  - `corner`: Benachrichtigungs-Badge oben rechts am nächsten `relative` Elternelement, mit Ring in der Seitenfarbe. In der Navigation und an den Tabs sitzt er **auf dem Text**: der Text steht in einem `relative inline-flex`-Span (mit `pr-2`, solange ein Zähler da ist), der Kreis bekommt `-top-1.5 -right-1`.
+  - `corner`: Benachrichtigungs-Badge oben rechts am nächsten `relative` Elternelement, mit Ring in der Seitenfarbe. In der Navigation und an den Tabs sitzt er **auf dem Text**: der Text steht in einem `relative inline-flex`-Span (mit `pr-3`, solange ein Zähler da ist), der Kreis bekommt `-top-0.5 -right-2`, damit er die obere Tab-Linie nicht anschneidet und nicht am Text klebt. In der mobilen Leiste sitzt er am Icon (`-top-1.5 -right-2.5`).
   - `inline`: im Textfluss.
 - Zahlen im mobilen Menü (`MobileActionContext`, `badge: number`) werden automatisch als `CountBadge` gezeigt; Text-Badges wie „2 aktiv“ bleiben Textmarken.
 - **Wichtig für neue Klassen:** Tailwind entfernt Klassen aus `@layer components`, die nicht wörtlich im Code stehen. Klassennamen deshalb nie zusammensetzen (`count-badge-${variant}`), sondern ausschreiben.
@@ -68,3 +68,14 @@ Komponente: [CountBadge.tsx](../frontend/src/components/CountBadge.tsx), CSS-Kla
 - `index.html` enthält in `#root` einen reinen HTML-Platzhalter (vollflächig Blau, Logo in der Mitte, kein Text). React ersetzt ihn beim ersten Rendern, dazwischen blitzt nichts Weißes auf.
 - `meta theme-color` startet blau und wird von [`theme.ts`](../frontend/src/lib/theme.ts) nach dem Start und bei jedem Theme-Wechsel auf `--bg-app` des aktiven Themes gesetzt, damit die Statusleiste zum Header passt.
 
+## +-Button: Tippen und Halten
+
+Komponente: [HoldToRecordFab.tsx](../frontend/src/features/capture/HoldToRecordFab.tsx)
+
+- **Kurz tippen (< 350 ms):** Führt wie bisher die primäre Aktion der aktuellen Ansicht (`primaryAction`) oder den mobilen Erfassungsdialog (`openMobileTriageCapture`) aus.
+- **Gedrückt halten (≥ 350 ms):** Startet direkt eine Sprachaufnahme über die Web Speech API (`de-DE`, `continuous`, `interimResults`). Der Button wird zum pulsierenden Mikrofon (`bg-status-err`), darüber zeigt eine schwebende Pille „Ich höre zu… (loslassen speichert)“ samt Live-Transkript.
+- **Loslassen:** Stoppt die Aufnahme, wartet kurz auf das letzte Wort und speichert den Text unabhängig von der aktiven Ansicht immer als Gedanken in die Inbox (`source: 'voice'`, `target: 'inbox'`).
+- **Nach oben ziehen (> 60 px):** Schaltet die Pille in den Abbruch-Zustand („🗑️ Zum Abbrechen loslassen“); Loslassen dort verwirft die Aufnahme (`abort()`).
+- **Fallback:** Unterstützt der Browser keine Spracherkennung oder ist das Mikrofon gesperrt (`not-allowed`), öffnet Halten wie beim Tippen den Dialog und blendet eine kurze Statusmeldung über der Bottom-Leiste ein.
+
+

README.md

@@ -153,6 +153,8 @@ Rufe `http://localhost:8080` auf. Beim ersten Start führt ein Assistent durch d
 | `DATA_DIR` | `/data` (Container) | Ablage der Datenbank `mindsift.db` |
 | `JWT_SECRET` | zufällig erzeugt (`/data/jwt.secret`) | Signaturschlüssel der Anmelde-Tokens; Platzhalter werden ignoriert |
 | `BASE_URL` | `http://localhost:8080` | Öffentliche URL. Nur wenn gesetzt (und SMTP eingerichtet ist), gibt es „Passwort vergessen?“ – die Links in den Mails werden ausschließlich daraus gebaut |
+| `TRUSTED_PROXIES` | `private` | Wessen `X-Forwarded-For`/`X-Real-IP` geglaubt wird: `private` (Proxy im Docker-/Heimnetz), `all` (immer, früheres Verhalten), `none` oder eigene CIDR-Bereiche ([Doku/reverse-proxy.md](Doku/reverse-proxy.md#client-ip-und-trusted_proxies)) |
+| `LOGIN_PROTECTION` | `true` | Sperre nach Fehlversuchen: 3 pro Konto und Adresse, 20 pro Konto, 30 pro Adresse, jeweils 15 Minuten. `false` schaltet sie ab |
 | `TZ` | `Europe/Berlin` | Zeitzone für Fälligkeiten und Alarme (ganztägige Aufgaben melden sich um 9:00) |
 | `ALLOW_REGISTRATION` | `false` | Offene Registrierung (im Admin-UI änderbar) |
 | `LOG_LEVEL` / `DEBUG` | `info` / `false` | Logging |
@@ -161,9 +163,10 @@ Rufe `http://localhost:8080` auf. Beim ersten Start führt ein Assistent durch d
 | `LEGAL_IMPRINT_URL`, `LEGAL_PRIVACY_URL` | leer | Impressum/Datenschutz als externer Link (nur `http(s)`) |
 | `LEGAL_IMPRINT_CONTENT`, `LEGAL_PRIVACY_CONTENT` (oder `…_CONTENT_FILE` mit Dateipfad) | leer | Impressum/Datenschutz als Markdown, angezeigt in einem Lesefenster. Ohne URL und Text bleibt der Link unsichtbar. |
 | `MINDA_DEMO` | `false` | Legt Demo-Konten `admin/admin` (mit Beispieldaten) und `user/user` an; eine Notiz und zwei Listen sind zwischen beiden geteilt, um das gemeinsame Bearbeiten auszuprobieren. **Nie auf öffentlichen Servern!** |
+| `DEMO_RESET_MINUTES` | `20` | Nur im Demo-Modus: setzt die Datenbank in diesem Abstand auf die Beispieldaten zurück (`0` = nie). Angemeldete bleiben angemeldet, die App zeigt einen Countdown und lädt danach neu. |
 
 * **Reverse-Proxy:** Am besten WebSocket-Upgrade und ungepufferte SSE-Streams durchreichen. Blockiert ein Proxy beides, funktioniert MindSift trotzdem über Long-Polling bzw. regelmäßige Abfragen, nur etwas träger. Beispiele für Nginx, Traefik, Caddy und Cloudflare: [Doku/reverse-proxy.md](Doku/reverse-proxy.md).
-* **Datensicherung:** Alle Daten liegen in `data/mindsift.db` (+ `-wal`/`-shm`). Sichere sie mit `sqlite3 mindsift.db ".backup 'backup.db'"` oder bei gestopptem Container. Zusätzlich gibt es einen JSON-Export pro Benutzer.
+* **Datensicherung:** In den Admin-Einstellungen lassen sich automatische tägliche Backups einschalten (ganze Datenbank plus ein Backup je Benutzer unter `data/backups/`, Standard 3 Tage aufbewahrt). Benutzer laden ihre Server-Backups herunter oder spielen sie ganz oder für einzelne Bereiche wieder ein. Der Ordner liegt neben der Datenbank: zusätzlich woanders sichern. Manuell geht weiterhin `sqlite3 mindsift.db ".backup 'backup.db'"`.
 * **Updates:** Neues Image ziehen und Container neu starten (`docker compose pull && docker compose up -d`). Das Schema wird beim Start automatisch angepasst. Die laufende Version steht im Kopf der App unter dem Namen.
 * **Image-Tags:** `:dev` = Stand des Branches `dev`, `:latest` = Stand von `main`, `:stable` = zuletzt veröffentlichte Version. Ein Git-Tag wie `v1.2.0` erzeugt `:v1.2.0` und verschiebt `:stable` darauf.
 

frontend/eslint.config.js

@@ -0,0 +1,30 @@
+// Lint rules for the frontend (FLAW-19): real mistakes are errors, style is left to the code.
+import js from '@eslint/js';
+import globals from 'globals';
+import reactHooks from 'eslint-plugin-react-hooks';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(
+  { ignores: ['dist', 'node_modules', 'coverage'] },
+  {
+    files: ['src/**/*.{ts,tsx}'],
+    extends: [js.configs.recommended, ...tseslint.configs.recommended],
+    languageOptions: {
+      ecmaVersion: 2022,
+      globals: globals.browser,
+    },
+    plugins: { 'react-hooks': reactHooks },
+    rules: {
+      ...reactHooks.configs.recommended.rules,
+      // Error payloads and browser APIs without types are handled as any on purpose
+      '@typescript-eslint/no-explicit-any': 'off',
+      '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_', varsIgnorePattern: '^_', caughtErrors: 'none' }],
+      'no-empty': ['error', { allowEmptyCatch: true }],
+    },
+  },
+  {
+    files: ['public/sw.js'],
+    languageOptions: { globals: globals.serviceworker },
+    extends: [js.configs.recommended],
+  },
+);

frontend/package.json

@@ -1,14 +1,14 @@
 {
   "name": "mindsift-frontend",
   "private": true,
-  "version": "0.4.1",
+  "version": "0.5.0",
   "license": "Unlicense",
   "type": "module",
   "scripts": {
     "dev": "vite",
     "build": "vite build",
     "preview": "vite preview",
-    "lint": "echo 'Linting passed'",
+    "lint": "eslint .",
     "test": "vitest",
     "test:run": "vitest run"
   },
@@ -22,17 +22,22 @@
     "react-dom": "^18.3.1"
   },
   "devDependencies": {
+    "@eslint/js": "9.17.0",
     "@testing-library/dom": "^10.4.2",
     "@testing-library/react": "^16.3.3",
     "@types/react": "^18.3.12",
     "@types/react-dom": "^18.3.1",
     "@vitejs/plugin-react": "^4.3.4",
     "autoprefixer": "^10.4.20",
+    "eslint": "9.17.0",
+    "eslint-plugin-react-hooks": "5.1.0",
     "fake-indexeddb": "^6.2.6",
+    "globals": "15.14.0",
     "jsdom": "^25.0.1",
     "postcss": "^8.4.49",
     "tailwindcss": "^3.4.17",
     "typescript": "^5.6.3",
+    "typescript-eslint": "8.18.2",
     "vite": "^5.4.11",
     "vitest": "^2.1.9"
   }

frontend/src/App.tsx

@@ -44,6 +44,7 @@ import {
   ThemeId,
 } from './lib/theme';
 import { InstantCaptureBar } from './features/capture/InstantCaptureBar';
+import { HoldToRecordFab } from './features/capture/HoldToRecordFab';
 import { CountBadge } from './components/CountBadge';
 import { TriageDeck } from './features/triage/TriageDeck';
 import { TasksView } from './features/triage/TasksView';
@@ -51,7 +52,8 @@ import { WorkspaceView } from './features/workspace/WorkspaceView';
 import { SharedListsView } from './features/lists/SharedListsView';
 import { SetupAndAuthView } from './features/auth/SetupAndAuthView';
 import { OfflineBanner } from './components/OfflineBanner';
-import { outboxCount } from './lib/offline';
+import { outboxCount, clearOfflineData } from './lib/offline';
+import { DemoCountdown } from './components/DemoCountdown';
 import { UserSettingsView } from './features/settings/UserSettingsView';
 import { AdminSettingsView } from './features/settings/AdminSettingsView';
 import { HelpView } from './features/help/HelpView';
@@ -122,6 +124,12 @@ export const App: React.FC = () => {
     instanceName: 'MindSift',
   });
   const [user, setUser] = useState<User | null>(null);
+  // Demo mode: when the next reset happens (local clock), and a counter that remounts all views after it
+  const [demoDeadline, setDemoDeadline] = useState<number | null>(null);
+  const [dataEpoch, setDataEpoch] = useState(0);
+  const [demoNotice, setDemoNotice] = useState<string | null>(null);
+  const lastDemoResetRef = useRef(0);
+  const handleDemoResetRef = useRef<() => void>(() => {});
   // Link from the password reset mail (?resetToken=…); removed from the address bar right away
   const [resetToken, setResetToken] = useState<string | null>(() => {
     try {
@@ -141,6 +149,7 @@ export const App: React.FC = () => {
     tasksDoneCount: 0,
     docsCount: 0,
     docsTodosOpenCount: 0,
+    listItemsOpenCount: 0,
     listsCount: 0,
     discardedCount: 0,
   });
@@ -462,7 +471,7 @@ export const App: React.FC = () => {
       .getThemes()
       .then((themes) => handleCustomThemesChange(themes))
       .catch(() => {});
-    // eslint-disable-next-line react-hooks/exhaustive-deps
+     
   }, [user?.id]);
 
   const refreshAll = useCallback(async () => {
@@ -550,14 +559,53 @@ export const App: React.FC = () => {
     }
   }, [user?.id]);
 
-  // Refresh stats on task/doc real-time events
+  useEffect(() => {
+    setDemoDeadline(
+      authStatus.demoMode && typeof authStatus.demoResetInSeconds === 'number'
+        ? Date.now() + authStatus.demoResetInSeconds * 1000
+        : null
+    );
+  }, [authStatus.demoMode, authStatus.demoResetInSeconds]);
+
+  // The demo database was reset: drop cached answers of the old data, remount the views (they load
+  // fresh data), refresh counters and the countdown. Sessions stay valid (fixed demo account IDs).
+  const handleDemoReset = useCallback(() => {
+    if (Date.now() - lastDemoResetRef.current < 30000) return; // event and countdown may both report it
+    lastDemoResetRef.current = Date.now();
+    void clearOfflineData();
+    setDataEpoch((n) => n + 1);
+    refreshAll();
+    api.getAuthStatus().then(setAuthStatus).catch(() => {});
+    setDemoNotice('Demo-Instanz wurde zurückgesetzt');
+    window.setTimeout(() => setDemoNotice(null), 4000);
+  }, [refreshAll]);
+  handleDemoResetRef.current = handleDemoReset;
+
+  // Countdown reached zero but no DEMO_RESET arrived (e.g. long polling): ask the server shortly after
+  const handleDemoCountdownElapsed = useCallback(() => {
+    window.setTimeout(() => {
+      api
+        .getAuthStatus()
+        .then((st) => {
+          if ((st.demoResetInSeconds ?? 0) > 60) handleDemoResetRef.current();
+          else setAuthStatus(st);
+        })
+        .catch(() => {});
+    }, 5000);
+  }, []);
+
+  // Refresh stats on task/doc/list real-time events (counters in the navigation)
   useEffect(() => {
     const handleWs = (e: any) => {
       const msg = e.detail;
       if (!msg) return;
+      if (msg.event === 'DEMO_RESET') {
+        handleDemoResetRef.current();
+        return;
+      }
       if (
         typeof msg.event === 'string' &&
-        (msg.event.startsWith('TASK_') || msg.event.startsWith('DOC_') || msg.event.startsWith('SPACE_'))
+        ['TASK_', 'DOC_', 'SPACE_', 'ITEM_', 'LIST_'].some((prefix) => msg.event.startsWith(prefix))
       ) {
         api.getMe().then((res) => {
           setStats(res.stats);
@@ -741,7 +789,16 @@ export const App: React.FC = () => {
                 <span className="font-bold text-base text-main tracking-tight leading-none">
                   {authStatus.instanceName || 'MindSift'}
                 </span>
+                {demoDeadline ? (
+                  <DemoCountdown
+                    deadline={demoDeadline}
+                    minutes={authStatus.demoResetMinutes}
+                    onElapsed={handleDemoCountdownElapsed}
+                    className="text-[9px] mt-0.5"
+                  />
+                ) : (
                   <span className="text-[9px] text-muted font-mono leading-tight mt-0.5">{APP_VERSION}</span>
+                )}
               </div>
               <ChevronDown
                 className={`w-4 h-4 text-muted transition-transform duration-150 ${
@@ -816,7 +873,16 @@ export const App: React.FC = () => {
               <span className="font-bold text-sm sm:text-base text-main tracking-tight leading-none">
                 {authStatus.instanceName || 'MindSift'}
               </span>
+              {demoDeadline ? (
+                <DemoCountdown
+                  deadline={demoDeadline}
+                  minutes={authStatus.demoResetMinutes}
+                  onElapsed={handleDemoCountdownElapsed}
+                  className="text-[10px] mt-0.5"
+                />
+              ) : (
                 <span className="text-[10px] text-muted font-mono leading-tight mt-0.5">{APP_VERSION}</span>
+              )}
             </div>
           </div>
 
@@ -832,11 +898,11 @@ export const App: React.FC = () => {
             <button
               type="button"
               onClick={() => setShowCommandPalette(true)}
-              className="h-8 px-2.5 rounded-btn bg-panel border border-border text-muted hover:text-main flex items-center gap-1.5 text-xs transition-colors cursor-pointer shrink-0"
+              className="w-8 h-8 rounded-full bg-panel border border-border text-muted hover:text-main flex items-center justify-center transition-colors cursor-pointer shrink-0"
-              title="Globale Suche öffnen (Cmd+K oder /)"
+              title="Globale Suche (Strg+K / ⌘K oder /)"
+              aria-label="Globale Suche (Strg+K / ⌘K oder /)"
             >
               <Search className="w-3.5 h-3.5" />
-              <span className="hidden lg:inline font-mono text-[10px] text-accent font-semibold">⌘K</span>
             </button>
           </div>
 
@@ -986,9 +1052,9 @@ export const App: React.FC = () => {
               className={`tab-btn ${activeTab === 'triage' ? 'tab-btn-active' : ''}`}
             >
               <Layers className="w-4 h-4" />
-              <span className={`relative inline-flex items-center ${stats.inboxCount > 0 ? 'pr-2' : ''}`}>
+              <span className={`relative inline-flex items-center ${stats.inboxCount > 0 ? 'pr-3' : ''}`}>
                 <span>Triage</span>
-                <CountBadge count={stats.inboxCount} variant="accent" position="corner" className="-top-1.5 -right-1" />
+                <CountBadge count={stats.inboxCount} variant="accent" position="corner" className="-top-0.5 -right-2" />
               </span>
             </button>
 
@@ -1000,10 +1066,7 @@ export const App: React.FC = () => {
               className={`tab-btn ${activeTab === 'workspace' ? 'tab-btn-active' : ''}`}
             >
               <FileText className="w-4 h-4" />
-              <span className={`relative inline-flex items-center ${(stats.docsTodosOpenCount ?? 0) > 0 ? 'pr-2' : ''}`}>
               <span>Workspace</span>
-                <CountBadge count={stats.docsTodosOpenCount} variant="accent" position="corner" className="-top-1.5 -right-1" />
-              </span>
             </button>
 
             <button
@@ -1014,9 +1077,9 @@ export const App: React.FC = () => {
               className={`tab-btn ${activeTab === 'tasks' ? 'tab-btn-active' : ''}`}
             >
               <CheckSquare className="w-4 h-4" />
-              <span className={`relative inline-flex items-center ${stats.tasksOpenCount > 0 ? 'pr-2' : ''}`}>
+              <span className={`relative inline-flex items-center ${stats.tasksOpenCount > 0 ? 'pr-3' : ''}`}>
                 <span>Aufgaben</span>
-                <CountBadge count={stats.tasksOpenCount} variant="accent" position="corner" className="-top-1.5 -right-1" />
+                <CountBadge count={stats.tasksOpenCount} variant="accent" position="corner" className="-top-0.5 -right-2" />
               </span>
             </button>
 
@@ -1028,7 +1091,10 @@ export const App: React.FC = () => {
               className={`tab-btn ${activeTab === 'lists' ? 'tab-btn-active' : ''}`}
             >
               <ShoppingCart className="w-4 h-4" />
+              <span className={`relative inline-flex items-center ${(stats.listItemsOpenCount ?? 0) > 0 ? 'pr-3' : ''}`}>
                 <span>Listen</span>
+                <CountBadge count={stats.listItemsOpenCount} variant="accent" position="corner" className="-top-0.5 -right-2" />
+              </span>
             </button>
           </div>
 
@@ -1052,11 +1118,19 @@ export const App: React.FC = () => {
 
       <MobileHeaderMenu activeTabLabel={activeTabLabelMap[activeTab]} />
       <OfflineBanner />
+      {demoNotice && (
+        <div
+          role="status"
+          className="fixed left-1/2 -translate-x-1/2 bottom-[calc(5.5rem+env(safe-area-inset-bottom))] sm:bottom-4 z-[60] px-3 py-1.5 rounded-full border border-accent/40 bg-panel-elevated text-main text-[11px] font-medium shadow-panel"
+        >
+          ✨ {demoNotice}
+        </div>
+      )}
 
       {/* Main Container */}
       <main className="flex-1 max-w-6xl w-full mx-auto px-3 sm:px-4 pt-3 pb-24 sm:pb-6">
         <ViewErrorBoundary onReset={() => setActiveTab('triage')}>
-          <section>
+          <section key={dataEpoch}>
             {activeTab === 'triage' && (
               <TriageDeck
                 deck={deck}
@@ -1085,6 +1159,7 @@ export const App: React.FC = () => {
                 initialBlockId={selectedBlockId}
                 onStatsChange={refreshAll}
                 onOpenTask={handleOpenTask}
+                onOpenSearch={() => setShowCommandPalette(true)}
               />
             )}
 
@@ -1166,18 +1241,14 @@ export const App: React.FC = () => {
           }`}
           title="Workspace"
         >
-          <div className="relative">
           <FileText className="w-5 h-5" />
-            <CountBadge count={stats.docsTodosOpenCount} variant="accent" position="corner" className="-top-1.5 -right-2.5" />
-          </div>
           <span className="text-[10px] leading-tight">Workspace</span>
         </button>
 
         {/* Col 3 (EXACT CENTER): + Quick-Add FAB */}
         <div className="flex items-center justify-center">
-          <button
+          <HoldToRecordFab
-            type="button"
+            onTap={() => {
-            onClick={() => {
               triggerHaptic(15);
               if (primaryAction) {
                 primaryAction();
@@ -1185,11 +1256,11 @@ export const App: React.FC = () => {
                 openMobileTriageCapture();
               }
             }}
-            className="w-14 h-14 -mt-6 rounded-full bg-accent text-on-accent shadow-lg flex items-center justify-center active:scale-90 transition-transform border-4 border-panel cursor-pointer"
+            onTranscript={async (text) => {
-            title="Schnell erfassen (+)"
+              const thought = await api.captureThought(text, 'normal', 'voice', '', { target: 'inbox' });
-          >
+              handleCaptured(thought, 'inbox');
-            <Plus className="w-7 h-7 stroke-[2.5]" />
+            }}
-          </button>
+          />
         </div>
 
         {/* Col 4: Aufgaben */}
@@ -1223,7 +1294,10 @@ export const App: React.FC = () => {
           }`}
           title="Listen"
         >
+          <div className="relative">
             <ShoppingCart className="w-5 h-5" />
+            <CountBadge count={stats.listItemsOpenCount} variant="accent" position="corner" className="-top-1.5 -right-2.5" />
+          </div>
           <span className="text-[10px] leading-tight">Listen</span>
         </button>
       </nav>

frontend/src/components/CommandPalette.tsx

@@ -6,7 +6,6 @@ import {
   ShoppingCart,
   X,
   Loader2,
-  ArrowRight,
   CornerDownLeft,
 } from 'lucide-react';
 import { SearchHit } from '../lib/types';

frontend/src/components/DemoCountdown.tsx

@@ -0,0 +1,38 @@
+import React, { useEffect, useState } from 'react';
+
+interface DemoCountdownProps {
+  deadline: number; // ms timestamp of the next reset, in this browser's clock
+  minutes?: number;
+  className?: string;
+  onElapsed?: () => void;
+}
+
+const fmt = (ms: number) => {
+  const total = Math.max(0, Math.round(ms / 1000));
+  return `${String(Math.floor(total / 60)).padStart(2, '0')}:${String(total % 60).padStart(2, '0')}`;
+};
+
+// "✨ Demo · Reset in MM:SS" in place of the version under the app name while the demo mode resets itself
+export const DemoCountdown: React.FC<DemoCountdownProps> = ({ deadline, minutes, className = '', onElapsed }) => {
+  const [now, setNow] = useState(() => Date.now());
+
+  useEffect(() => {
+    const timer = window.setInterval(() => setNow(Date.now()), 1000);
+    return () => window.clearInterval(timer);
+  }, []);
+
+  const left = deadline - now;
+  useEffect(() => {
+    if (left <= 0) onElapsed?.();
+    // Runs when the deadline passes, not on every tick
+  }, [left <= 0, deadline]);
+
+  return (
+    <span
+      className={`font-mono leading-tight text-accent ${className}`}
+      title={`Diese Test-Instanz wird alle ${minutes || 20} Minuten automatisch auf den Ausgangszustand zurückgesetzt.`}
+    >
+      ✨ Demo · {left > 0 ? `Reset in ${fmt(left)}` : 'wird zurückgesetzt…'}
+    </span>
+  );
+};

frontend/src/components/__tests__/AvatarStack.test.tsx

@@ -0,0 +1,22 @@
+import { describe, it, expect } from 'vitest';
+import { render } from '@testing-library/react';
+import { AvatarStack } from '../AvatarStack';
+
+const people = ['Anna', 'Ben', 'Carla', 'Dana', 'Emil'].map((name, i) => ({ id: `u${i}`, name }));
+
+describe('AvatarStack (who a list or note is shared with)', () => {
+  it('shows at most three people and the rest as +n', () => {
+    const { container } = render(<AvatarStack people={people} />);
+    expect(container.textContent).toContain('+2');
+    expect(container.firstElementChild?.children.length).toBe(4); // 3 avatars + overflow circle
+  });
+
+  it('renders nothing for an unshared item', () => {
+    expect(render(<AvatarStack people={[]} />).container.firstChild).toBeNull();
+  });
+
+  it('needs no overflow circle when everyone fits', () => {
+    const { container } = render(<AvatarStack people={people.slice(0, 2)} />);
+    expect(container.textContent).not.toContain('+');
+  });
+});

frontend/src/features/auth/SetupAndAuthView.tsx

@@ -15,6 +15,7 @@ import { AuthStatus, SharingMode, User } from '../../lib/types';
 import { api, triggerHaptic } from '../../lib/api';
 import { ToggleSwitch } from '../../components/ToggleSwitch';
 import { LegalLinks } from '../../components/LegalLinks';
+import { passwordProblem } from '../../lib/password';
 
 interface SetupAndAuthViewProps {
   authStatus: AuthStatus;
@@ -74,6 +75,12 @@ export const SetupAndAuthView: React.FC<SetupAndAuthViewProps> = ({
   const handleResetPassword = async (e: React.FormEvent) => {
     e.preventDefault();
     setError(null);
+    const resetProblem = passwordProblem(newPassword);
+    if (resetProblem) {
+      setError(resetProblem);
+      triggerHaptic(25);
+      return;
+    }
     if (newPassword !== newPasswordConfirm) {
       setError('Die eingegebenen Passwörter stimmen nicht überein.');
       triggerHaptic(25);
@@ -99,6 +106,12 @@ export const SetupAndAuthView: React.FC<SetupAndAuthViewProps> = ({
     e.preventDefault();
     setError(null);
 
+    const setupProblem = passwordProblem(setupPassword);
+    if (setupProblem) {
+      setError(setupProblem);
+      triggerHaptic(25);
+      return;
+    }
     if (setupPassword !== setupPasswordConfirm) {
       setError('Die eingegebenen Passwörter stimmen nicht überein.');
       triggerHaptic(25);
@@ -143,6 +156,12 @@ export const SetupAndAuthView: React.FC<SetupAndAuthViewProps> = ({
   const handleRegisterOrInvite = async (e: React.FormEvent) => {
     e.preventDefault();
     setError(null);
+    const registerProblem = passwordProblem(password);
+    if (registerProblem) {
+      setError(registerProblem);
+      triggerHaptic(25);
+      return;
+    }
     setSubmitting(true);
     triggerHaptic(15);
     try {
@@ -235,8 +254,7 @@ export const SetupAndAuthView: React.FC<SetupAndAuthViewProps> = ({
                     type="password"
                     value={setupPassword}
                     onChange={(e) => setSetupPassword(e.target.value)}
-                    placeholder="Mindestens 4 Zeichen"
+                    placeholder="Mindestens 8 Zeichen"
-                    minLength={4}
                     required
                     className="w-full h-8 px-2.5 input-field"
                   />
@@ -248,7 +266,6 @@ export const SetupAndAuthView: React.FC<SetupAndAuthViewProps> = ({
                     value={setupPasswordConfirm}
                     onChange={(e) => setSetupPasswordConfirm(e.target.value)}
                     placeholder="Passwort erneut eingeben"
-                    minLength={4}
                     required
                     className={`w-full h-8 px-2.5 input-field ${
                       setupPasswordConfirm && setupPassword !== setupPasswordConfirm
@@ -529,7 +546,7 @@ export const SetupAndAuthView: React.FC<SetupAndAuthViewProps> = ({
                   type="password"
                   value={newPassword}
                   onChange={(e) => setNewPassword(e.target.value)}
-                  minLength={4}
+                  placeholder="Mindestens 8 Zeichen"
                   required
                   autoFocus
                   autoComplete="new-password"
@@ -542,7 +559,6 @@ export const SetupAndAuthView: React.FC<SetupAndAuthViewProps> = ({
                   type="password"
                   value={newPasswordConfirm}
                   onChange={(e) => setNewPasswordConfirm(e.target.value)}
-                  minLength={4}
                   required
                   autoComplete="new-password"
                   className="w-full h-11 sm:h-8 px-2.5 input-field text-base sm:text-xs"
@@ -716,8 +732,7 @@ export const SetupAndAuthView: React.FC<SetupAndAuthViewProps> = ({
                   type="password"
                   value={password}
                   onChange={(e) => setPassword(e.target.value)}
-                  placeholder="Mindestens 4 Zeichen"
+                  placeholder="Mindestens 8 Zeichen"
-                  minLength={4}
                   required
                   className="w-full h-8 px-2.5 input-field"
                 />

frontend/src/features/capture/HoldToRecordFab.tsx

@@ -0,0 +1,363 @@
+import React, { useEffect, useRef, useState } from 'react';
+import { Mic, Plus } from 'lucide-react';
+import { triggerHaptic } from '../../lib/api';
+
+export interface HoldToRecordFabProps {
+  onTap: () => void;
+  onTranscript: (text: string) => Promise<void> | void;
+}
+
+const HOLD_DELAY_MS = 350;
+const CANCEL_DRAG_PX = 60;
+const STOP_TIMEOUT_MS = 1500;
+const TOAST_DURATION_MS = 2500;
+
+export const HoldToRecordFab: React.FC<HoldToRecordFabProps> = ({ onTap, onTranscript }) => {
+  const [isRecording, setIsRecording] = useState(false);
+  const [isCancelZone, setIsCancelZone] = useState(false);
+  const [liveTranscript, setLiveTranscript] = useState('');
+  const [toastMessage, setToastMessage] = useState<string | null>(null);
+
+  const isPressedRef = useRef(false);
+  const didEnterHoldRef = useRef(false);
+  const fallbackHandledRef = useRef(false);
+  const isCancelZoneRef = useRef(false);
+  const abortedRef = useRef(false);
+  const isStoppingRef = useRef(false);
+  const hasEndedRef = useRef(false);
+  const finalizedRef = useRef(false);
+  const startYRef = useRef(0);
+  const transcriptRef = useRef('');
+
+  const recognitionRef = useRef<any>(null);
+  const holdTimerRef = useRef<number | null>(null);
+  const stopTimerRef = useRef<number | null>(null);
+  const toastTimerRef = useRef<number | null>(null);
+
+  const clearHoldTimer = () => {
+    if (holdTimerRef.current !== null) {
+      window.clearTimeout(holdTimerRef.current);
+      holdTimerRef.current = null;
+    }
+  };
+
+  const clearStopTimer = () => {
+    if (stopTimerRef.current !== null) {
+      window.clearTimeout(stopTimerRef.current);
+      stopTimerRef.current = null;
+    }
+  };
+
+  const showToast = (msg: string) => {
+    if (toastTimerRef.current !== null) {
+      window.clearTimeout(toastTimerRef.current);
+    }
+    setToastMessage(msg);
+    toastTimerRef.current = window.setTimeout(() => {
+      setToastMessage(null);
+      toastTimerRef.current = null;
+    }, TOAST_DURATION_MS);
+  };
+
+  useEffect(() => {
+    return () => {
+      clearHoldTimer();
+      clearStopTimer();
+      if (toastTimerRef.current !== null) {
+        window.clearTimeout(toastTimerRef.current);
+      }
+      if (recognitionRef.current) {
+        try {
+          recognitionRef.current.abort?.();
+        } catch {
+          // ignore cleanup errors
+        }
+      }
+    };
+  }, []);
+
+  const finalizeRecording = async () => {
+    if (finalizedRef.current) return;
+    finalizedRef.current = true;
+    clearStopTimer();
+    recognitionRef.current = null;
+
+    if (abortedRef.current) return;
+
+    const text = transcriptRef.current.trim();
+    setLiveTranscript('');
+    if (!text) {
+      showToast('Nichts erkannt');
+      return;
+    }
+
+    try {
+      await onTranscript(text);
+      triggerHaptic(25);
+      showToast('Im Quick Dump gespeichert');
+    } catch {
+      showToast('Fehler beim Speichern');
+    }
+  };
+
+  const startVoiceRecording = () => {
+    const SpeechRecognition =
+      (window as any).SpeechRecognition || (window as any).webkitSpeechRecognition;
+
+    if (!SpeechRecognition) {
+      fallbackHandledRef.current = true;
+      showToast('Spracheingabe wird von diesem Browser nicht unterstützt');
+      onTap();
+      return;
+    }
+
+    try {
+      const recognition = new SpeechRecognition();
+      recognition.lang = 'de-DE';
+      recognition.interimResults = true;
+      recognition.continuous = true;
+
+      transcriptRef.current = '';
+      abortedRef.current = false;
+      isStoppingRef.current = false;
+      hasEndedRef.current = false;
+      finalizedRef.current = false;
+      isCancelZoneRef.current = false;
+
+      recognition.onresult = (event: any) => {
+        let combined = '';
+        for (let i = 0; i < event.results.length; i++) {
+          combined += event.results[i][0].transcript;
+        }
+        transcriptRef.current = combined;
+        setLiveTranscript(combined);
+      };
+
+      recognition.onerror = (event: any) => {
+        const errCode = event?.error;
+        if (errCode === 'not-allowed' || errCode === 'service-not-allowed') {
+          abortedRef.current = true;
+          clearStopTimer();
+          setIsRecording(false);
+          setIsCancelZone(false);
+          setLiveTranscript('');
+          if (!fallbackHandledRef.current) {
+            fallbackHandledRef.current = true;
+            showToast('Mikrofon nicht freigegeben');
+            onTap();
+          }
+          return;
+        }
+        if (isStoppingRef.current) {
+          void finalizeRecording();
+        }
+      };
+
+      recognition.onend = () => {
+        hasEndedRef.current = true;
+        if (isStoppingRef.current) {
+          void finalizeRecording();
+        }
+      };
+
+      recognitionRef.current = recognition;
+      setLiveTranscript('');
+      setIsCancelZone(false);
+      setIsRecording(true);
+      triggerHaptic([15, 60, 25]);
+      recognition.start();
+    } catch {
+      fallbackHandledRef.current = true;
+      setIsRecording(false);
+      showToast('Spracheingabe wird von diesem Browser nicht unterstützt');
+      onTap();
+    }
+  };
+
+  const handlePointerDown = (e: React.PointerEvent<HTMLButtonElement>) => {
+    if (e.pointerType === 'mouse' && e.button !== 0) return;
+
+    try {
+      e.currentTarget.setPointerCapture?.(e.pointerId);
+    } catch {
+      // ignore if unsupported in environment
+    }
+
+    clearHoldTimer();
+    clearStopTimer();
+
+    isPressedRef.current = true;
+    didEnterHoldRef.current = false;
+    fallbackHandledRef.current = false;
+    isCancelZoneRef.current = false;
+    startYRef.current = e.clientY;
+
+    holdTimerRef.current = window.setTimeout(() => {
+      holdTimerRef.current = null;
+      if (!isPressedRef.current) return;
+      didEnterHoldRef.current = true;
+      startVoiceRecording();
+    }, HOLD_DELAY_MS);
+  };
+
+  const handlePointerMove = (e: React.PointerEvent<HTMLButtonElement>) => {
+    if (!isPressedRef.current || !didEnterHoldRef.current || fallbackHandledRef.current) return;
+    const deltaUp = startYRef.current - e.clientY;
+    const inCancel = deltaUp > CANCEL_DRAG_PX;
+    if (inCancel !== isCancelZoneRef.current) {
+      isCancelZoneRef.current = inCancel;
+      setIsCancelZone(inCancel);
+      triggerHaptic(10);
+    }
+  };
+
+  const handlePointerUp = (e: React.PointerEvent<HTMLButtonElement>) => {
+    try {
+      e.currentTarget.releasePointerCapture?.(e.pointerId);
+    } catch {
+      // ignore
+    }
+
+    if (!isPressedRef.current) return;
+    isPressedRef.current = false;
+    clearHoldTimer();
+
+    if (!didEnterHoldRef.current) {
+      onTap();
+      return;
+    }
+
+    if (fallbackHandledRef.current) {
+      return;
+    }
+
+    setIsRecording(false);
+    setIsCancelZone(false);
+
+    if (isCancelZoneRef.current) {
+      abortedRef.current = true;
+      clearStopTimer();
+      setLiveTranscript('');
+      triggerHaptic(15);
+      try {
+        recognitionRef.current?.abort?.();
+      } catch {
+        // ignore
+      }
+      recognitionRef.current = null;
+      return;
+    }
+
+    isStoppingRef.current = true;
+    if (hasEndedRef.current || !recognitionRef.current) {
+      void finalizeRecording();
+      return;
+    }
+
+    stopTimerRef.current = window.setTimeout(() => {
+      void finalizeRecording();
+    }, STOP_TIMEOUT_MS);
+
+    try {
+      recognitionRef.current.stop();
+    } catch {
+      void finalizeRecording();
+    }
+  };
+
+  const handlePointerCancel = (e: React.PointerEvent<HTMLButtonElement>) => {
+    try {
+      e.currentTarget.releasePointerCapture?.(e.pointerId);
+    } catch {
+      // ignore
+    }
+
+    if (!isPressedRef.current) return;
+    isPressedRef.current = false;
+    clearHoldTimer();
+    clearStopTimer();
+
+    if (didEnterHoldRef.current && !fallbackHandledRef.current) {
+      abortedRef.current = true;
+      setIsRecording(false);
+      setIsCancelZone(false);
+      setLiveTranscript('');
+      try {
+        recognitionRef.current?.abort?.();
+      } catch {
+        // ignore
+      }
+      recognitionRef.current = null;
+    }
+  };
+
+  const displayedTranscript =
+    liveTranscript.length > 180 ? `…${liveTranscript.slice(-180)}` : liveTranscript;
+
+  return (
+    <>
+      {isRecording && (
+        <div
+          className={
+            isCancelZone
+              ? 'fixed left-1/2 -translate-x-1/2 bottom-[calc(5.5rem+env(safe-area-inset-bottom))] z-50 w-max max-w-[calc(100vw-1.5rem)] px-4 py-2.5 rounded-card bg-panel-elevated border border-status-err text-status-err shadow-panel pointer-events-none text-center'
+              : 'fixed left-1/2 -translate-x-1/2 bottom-[calc(5.5rem+env(safe-area-inset-bottom))] z-50 w-max max-w-[calc(100vw-1.5rem)] px-4 py-2.5 rounded-card bg-panel-elevated border border-border text-main shadow-panel pointer-events-none text-center'
+          }
+        >
+          {isCancelZone ? (
+            <div className="text-xs font-semibold">🗑️ Zum Abbrechen loslassen</div>
+          ) : (
+            <div className="space-y-1">
+              <div className="text-xs font-semibold text-main">
+                Ich höre zu… (loslassen speichert)
+              </div>
+              {displayedTranscript ? (
+                <div className="text-xs text-muted break-words max-w-[calc(100vw-3rem)]">
+                  {displayedTranscript}
+                </div>
+              ) : (
+                <div className="text-[11px] text-faint">Nach oben ziehen zum Abbrechen</div>
+              )}
+            </div>
+          )}
+        </div>
+      )}
+
+      {!isRecording && toastMessage && (
+        <div
+          role="status"
+          aria-live="polite"
+          className="fixed left-1/2 -translate-x-1/2 bottom-[calc(5.5rem+env(safe-area-inset-bottom))] z-50 w-max max-w-[calc(100vw-1.5rem)] px-4 py-2 rounded-pill bg-panel-elevated border border-border text-main text-xs font-medium shadow-panel pointer-events-none text-center"
+        >
+          {toastMessage}
+        </div>
+      )}
+
+      <button
+        type="button"
+        onPointerDown={handlePointerDown}
+        onPointerMove={handlePointerMove}
+        onPointerUp={handlePointerUp}
+        onPointerCancel={handlePointerCancel}
+        onContextMenu={(e) => e.preventDefault()}
+        // Keyboard, screen readers and switch control produce a click without pointer events (detail 0)
+        onClick={(e) => {
+          if (e.detail === 0) onTap();
+        }}
+        className={
+          isRecording
+            ? 'w-14 h-14 -mt-6 rounded-full bg-status-err text-on-accent shadow-lg flex items-center justify-center transition-transform border-4 border-panel cursor-pointer touch-none select-none animate-pulse'
+            : 'w-14 h-14 -mt-6 rounded-full bg-accent text-on-accent shadow-lg flex items-center justify-center active:scale-90 transition-transform border-4 border-panel cursor-pointer touch-none select-none'
+        }
+        title="Schnell erfassen (+)"
+        aria-label="Schnell erfassen – tippen zum Schreiben, gedrückt halten zum Sprechen"
+      >
+        {isRecording ? (
+          <Mic className="w-7 h-7 stroke-[2.5]" />
+        ) : (
+          <Plus className="w-7 h-7 stroke-[2.5]" />
+        )}
+      </button>
+    </>
+  );
+};

frontend/src/features/capture/__tests__/HoldToRecordFab.test.tsx

@@ -0,0 +1,266 @@
+import React from 'react';
+import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
+import { render, screen, fireEvent, act } from '@testing-library/react';
+import { HoldToRecordFab } from '../HoldToRecordFab';
+
+class FakeSpeechRecognition {
+  static instances: FakeSpeechRecognition[] = [];
+
+  lang = '';
+  interimResults = false;
+  continuous = false;
+  started = false;
+  stopped = false;
+  aborted = false;
+
+  onresult: ((event: any) => void) | null = null;
+  onerror: ((event: any) => void) | null = null;
+  onend: (() => void) | null = null;
+
+  constructor() {
+    FakeSpeechRecognition.instances.push(this);
+  }
+
+  start() {
+    this.started = true;
+  }
+
+  stop() {
+    this.stopped = true;
+    this.onend?.();
+  }
+
+  abort() {
+    this.aborted = true;
+    this.onend?.();
+  }
+
+  emitResult(transcript: string) {
+    this.onresult?.({
+      results: [[{ transcript }]],
+    });
+  }
+
+  emitError(error: string) {
+    this.onerror?.({ error });
+  }
+}
+
+describe('HoldToRecordFab', () => {
+  beforeEach(() => {
+    vi.useFakeTimers();
+    FakeSpeechRecognition.instances = [];
+    (window as any).SpeechRecognition = FakeSpeechRecognition;
+    delete (window as any).webkitSpeechRecognition;
+  });
+
+  afterEach(() => {
+    vi.useRealTimers();
+    delete (window as any).SpeechRecognition;
+    delete (window as any).webkitSpeechRecognition;
+  });
+
+  it('calls onTap on a short tap (< 350 ms)', () => {
+    const onTap = vi.fn();
+    const onTranscript = vi.fn();
+
+    render(<HoldToRecordFab onTap={onTap} onTranscript={onTranscript} />);
+    const btn = screen.getByRole('button', {
+      name: /Schnell erfassen – tippen zum Schreiben, gedrückt halten zum Sprechen/i,
+    });
+
+    fireEvent.pointerDown(btn, { clientY: 600, button: 0 });
+    act(() => {
+      vi.advanceTimersByTime(150);
+    });
+    fireEvent.pointerUp(btn, { clientY: 600 });
+
+    expect(onTap).toHaveBeenCalledTimes(1);
+    expect(onTranscript).not.toHaveBeenCalled();
+    expect(FakeSpeechRecognition.instances).toHaveLength(0);
+  });
+
+  it('starts recording on hold (>= 350 ms) and calls onTranscript with recognized text on release', async () => {
+    const onTap = vi.fn();
+    const onTranscript = vi.fn().mockResolvedValue(undefined);
+
+    render(<HoldToRecordFab onTap={onTap} onTranscript={onTranscript} />);
+    const btn = screen.getByRole('button', {
+      name: /Schnell erfassen – tippen zum Schreiben, gedrückt halten zum Sprechen/i,
+    });
+
+    fireEvent.pointerDown(btn, { clientY: 600, button: 0 });
+    act(() => {
+      vi.advanceTimersByTime(350);
+    });
+
+    expect(FakeSpeechRecognition.instances).toHaveLength(1);
+    const rec = FakeSpeechRecognition.instances[0];
+    expect(rec.started).toBe(true);
+    expect(rec.lang).toBe('de-DE');
+    expect(rec.interimResults).toBe(true);
+    expect(rec.continuous).toBe(true);
+    expect(screen.getByText(/Ich höre zu… \(loslassen speichert\)/i)).toBeTruthy();
+
+    act(() => {
+      rec.emitResult('Milch und Kaffee einkaufen');
+    });
+    expect(screen.getByText('Milch und Kaffee einkaufen')).toBeTruthy();
+
+    await act(async () => {
+      fireEvent.pointerUp(btn, { clientY: 600 });
+    });
+
+    expect(rec.stopped).toBe(true);
+    expect(onTap).not.toHaveBeenCalled();
+    expect(onTranscript).toHaveBeenCalledTimes(1);
+    expect(onTranscript).toHaveBeenCalledWith('Milch und Kaffee einkaufen');
+    expect(screen.getByRole('status').textContent).toContain('Im Quick Dump gespeichert');
+  });
+
+  it('cancels recording when dragged up by more than 60 px and released', () => {
+    const onTap = vi.fn();
+    const onTranscript = vi.fn();
+
+    render(<HoldToRecordFab onTap={onTap} onTranscript={onTranscript} />);
+    const btn = screen.getByRole('button', {
+      name: /Schnell erfassen – tippen zum Schreiben, gedrückt halten zum Sprechen/i,
+    });
+
+    fireEvent.pointerDown(btn, { clientY: 600, button: 0 });
+    act(() => {
+      vi.advanceTimersByTime(350);
+    });
+
+    const rec = FakeSpeechRecognition.instances[0];
+    act(() => {
+      rec.emitResult('Verwerfen Test');
+    });
+
+    // Drag up by 80px (> 60px threshold)
+    fireEvent.pointerMove(btn, { clientY: 520 });
+    expect(screen.getByText(/🗑️ Zum Abbrechen loslassen/i)).toBeTruthy();
+
+    fireEvent.pointerUp(btn, { clientY: 520 });
+
+    expect(rec.aborted).toBe(true);
+    expect(onTap).not.toHaveBeenCalled();
+    expect(onTranscript).not.toHaveBeenCalled();
+  });
+
+  it('resumes normal recording if dragged above 60 px and then pulled back down before release', async () => {
+    const onTap = vi.fn();
+    const onTranscript = vi.fn().mockResolvedValue(undefined);
+
+    render(<HoldToRecordFab onTap={onTap} onTranscript={onTranscript} />);
+    const btn = screen.getByRole('button', {
+      name: /Schnell erfassen – tippen zum Schreiben, gedrückt halten zum Sprechen/i,
+    });
+
+    fireEvent.pointerDown(btn, { clientY: 600, button: 0 });
+    act(() => {
+      vi.advanceTimersByTime(350);
+    });
+
+    const rec = FakeSpeechRecognition.instances[0];
+    act(() => {
+      rec.emitResult('Doch behalten');
+    });
+
+    // Drag up into cancel zone
+    fireEvent.pointerMove(btn, { clientY: 510 });
+    expect(screen.getByText(/🗑️ Zum Abbrechen loslassen/i)).toBeTruthy();
+
+    // Drag back down below threshold
+    fireEvent.pointerMove(btn, { clientY: 580 });
+    expect(screen.getByText(/Ich höre zu… \(loslassen speichert\)/i)).toBeTruthy();
+
+    await act(async () => {
+      fireEvent.pointerUp(btn, { clientY: 580 });
+    });
+
+    expect(rec.aborted).toBe(false);
+    expect(onTranscript).toHaveBeenCalledWith('Doch behalten');
+  });
+
+  it('shows "Nichts erkannt" and does not save when transcript is empty', async () => {
+    const onTap = vi.fn();
+    const onTranscript = vi.fn();
+
+    render(<HoldToRecordFab onTap={onTap} onTranscript={onTranscript} />);
+    const btn = screen.getByRole('button', {
+      name: /Schnell erfassen – tippen zum Schreiben, gedrückt halten zum Sprechen/i,
+    });
+
+    fireEvent.pointerDown(btn, { clientY: 600, button: 0 });
+    act(() => {
+      vi.advanceTimersByTime(350);
+    });
+    await act(async () => {
+      fireEvent.pointerUp(btn, { clientY: 600 });
+    });
+
+    expect(onTap).not.toHaveBeenCalled();
+    expect(onTranscript).not.toHaveBeenCalled();
+    expect(screen.getByRole('status').textContent).toContain('Nichts erkannt');
+  });
+
+  it('falls back to onTap and shows message when microphone permission is denied', () => {
+    const onTap = vi.fn();
+    const onTranscript = vi.fn();
+
+    render(<HoldToRecordFab onTap={onTap} onTranscript={onTranscript} />);
+    const btn = screen.getByRole('button', {
+      name: /Schnell erfassen – tippen zum Schreiben, gedrückt halten zum Sprechen/i,
+    });
+
+    fireEvent.pointerDown(btn, { clientY: 600, button: 0 });
+    act(() => {
+      vi.advanceTimersByTime(350);
+    });
+
+    const rec = FakeSpeechRecognition.instances[0];
+    act(() => {
+      rec.emitError('not-allowed');
+    });
+    fireEvent.pointerUp(btn, { clientY: 600 });
+
+    expect(onTap).toHaveBeenCalledTimes(1);
+    expect(onTranscript).not.toHaveBeenCalled();
+    expect(screen.getByRole('status').textContent).toContain('Mikrofon nicht freigegeben');
+  });
+
+  it('falls back to onTap and shows a status message when SpeechRecognition is unsupported', () => {
+    delete (window as any).SpeechRecognition;
+    delete (window as any).webkitSpeechRecognition;
+
+    const onTap = vi.fn();
+    const onTranscript = vi.fn();
+
+    render(<HoldToRecordFab onTap={onTap} onTranscript={onTranscript} />);
+    const btn = screen.getByRole('button', {
+      name: /Schnell erfassen – tippen zum Schreiben, gedrückt halten zum Sprechen/i,
+    });
+
+    fireEvent.pointerDown(btn, { clientY: 600, button: 0 });
+    act(() => {
+      vi.advanceTimersByTime(350);
+    });
+    fireEvent.pointerUp(btn, { clientY: 600 });
+
+    expect(onTap).toHaveBeenCalledTimes(1);
+    expect(onTranscript).not.toHaveBeenCalled();
+    expect(screen.getByRole('status').textContent).toContain(
+      'Spracheingabe wird von diesem Browser nicht unterstützt'
+    );
+  });
+});
+
+describe('HoldToRecordFab keyboard access', () => {
+  it('opens the capture sheet when activated without a pointer (keyboard, screen reader)', () => {
+    const onTap = vi.fn();
+    const { getByRole } = render(<HoldToRecordFab onTap={onTap} onTranscript={vi.fn()} />);
+    fireEvent.click(getByRole('button'), { detail: 0 });
+    expect(onTap).toHaveBeenCalledTimes(1);
+  });
+});

frontend/src/features/help/HelpView.tsx

@@ -6,7 +6,6 @@ import {
   CheckSquare,
   Keyboard,
   Pin,
-  FolderTree,
   Sparkles,
   Command,
   Users,
@@ -19,14 +18,10 @@ import {
   Lock,
   ArrowLeft,
   X,
-  Smartphone,
-  RotateCcw,
   Heading1,
   ListTodo,
   Code,
   Download,
-  Flame,
-  Check,
 } from 'lucide-react';
 import { AboutModal } from '../../components/AboutModal';
 
@@ -413,7 +408,7 @@ export const HelpView: React.FC<HelpViewProps> = ({ onBack }) => {
                 <strong className="text-main">Sofortiger Fokus:</strong> Drücke irgendwo in der App <kbd className="px-1.5 py-0.5 bg-panel border border-border rounded font-mono text-[11px] text-accent">C</kbd> oder <kbd className="px-1.5 py-0.5 bg-panel border border-border rounded font-mono text-[11px] text-accent">/</kbd> (sofern du nicht bereits in einem Textfeld tippst).
               </li>
               <li>
-                <strong className="text-main">Sprach-Diktat:</strong> Klicke auf das Mikrofon-Symbol (<Mic className="w-3.5 h-3.5 inline text-accent" />) für kontinuierliche Spracheingabe über die Web Speech API. Gesprochene Gedanken werden automatisch mit dem Tag <code className="text-accent font-mono">#diktat</code> versehen.
+                <strong className="text-main">Sprach-Diktat:</strong> Klicke auf das Mikrofon-Symbol (<Mic className="w-3.5 h-3.5 inline text-accent" />) für kontinuierliche Spracheingabe über die Web Speech API. Gesprochene Gedanken werden automatisch mit dem Tag <code className="text-accent font-mono">#diktat</code> versehen. Auf dem Smartphone kannst du außerdem den runden <strong className="text-main">+</strong>-Button in der unteren Leiste gedrückt halten, um direkt einzusprechen – beim Loslassen landet der Text sofort im Posteingang (nach oben ziehen bricht ab).
               </li>
               <li>
                 <strong className="text-main">Ziel-Auswahl:</strong> Gedanken landen standardmäßig im Posteingang. Über die Optionen kannst du sie jedoch sofort als <strong className="text-main">Aufgabe</strong> (mit Priorität und Fälligkeit), <strong className="text-main">Listeneintrag</strong> (z.B. auf die Einkaufsliste) oder <strong className="text-main">neue Notiz</strong> routen.
@@ -488,7 +483,10 @@ export const HelpView: React.FC<HelpViewProps> = ({ onBack }) => {
         content: (
           <div className="space-y-2 text-muted leading-relaxed">
             <p>
-              Unter <em className="text-main">Benutzereinstellungen → Webhooks & API</em> kannst du persönliche API-Schlüssel generieren.
+              Unter <em className="text-main">Kontoeinstellungen → Private Webhooks &amp; Export</em> kannst du persönliche API-Schlüssel erzeugen. Pro Schlüssel legst du fest, was er einliefern darf: Gedanken in die Inbox, Aufgaben direkt oder Einträge in Listen. Lesen kann ein Schlüssel nie.
+            </p>
+            <p>
+              Mit dem Feld <code className="text-accent bg-panel px-1 py-0.5 rounded font-mono">"target"</code> wählst du das Ziel: <code className="font-mono">triage</code> (Standard), <code className="font-mono">task</code> (optional mit <code className="font-mono">taskListId</code>) oder <code className="font-mono">list_item</code> (mit <code className="font-mono">listId</code>). Der Simulator in den Einstellungen zeigt passende Beispiele.
             </p>
             <p>
               Über den Endpunkt <code className="text-accent bg-panel px-1 py-0.5 rounded font-mono">POST /api/v1/webhooks/ingest</code> kannst du Gedanken aus iOS-Kurzbefehlen, Smart-Home-Systemen oder Drittanwendungen einspeisen. Sie werden automatisch mit dem Tag <code className="text-accent font-mono">#webhook</code> markiert.
@@ -632,6 +630,9 @@ export const HelpView: React.FC<HelpViewProps> = ({ onBack }) => {
               <li>
                 <strong className="text-main">Eigenes Theme:</strong> Vorlage herunterladen oder einfügen, Farben und Rundungen anpassen, als <code className="text-accent bg-panel px-1 py-0.5 rounded font-mono">.css</code>-Datei hochladen oder einfügen und „Speichern &amp; aktivieren“. Das Theme greift sofort und steht dir auf allen Geräten zur Verfügung.
               </li>
+              <li>
+                <strong className="text-main">Server-Backups:</strong> Hat die Administration automatische Backups eingeschaltet, findest du unter <em>Kontoeinstellungen → Private Webhooks &amp; Export</em> die täglichen Sicherungen deiner Daten. Du kannst sie herunterladen oder wieder einspielen, auch nur für einzelne Bereiche wie Listen oder Aufgaben.
+              </li>
               <li>
                 <strong className="text-main">Ohne Internet:</strong> Als App installiert (oder im Browser) startet MindSift auch offline mit dem zuletzt geladenen Stand. Gedanken erfassen sowie Aufgaben und Listeneinträge abhaken geht weiter; ein Hinweis unten zeigt, wie viele Änderungen warten, und sie werden automatisch übertragen, sobald die Verbindung zurück ist.
               </li>

frontend/src/features/lists/SharedListsView.tsx

@@ -7,11 +7,10 @@ import {
   Radio,
   Sparkles,
   X,
-  Hash,
   ShoppingCart,
 } from 'lucide-react';
-import { ListItem, SharedList, ListShare, Team, User, WSMessage } from '../../lib/types';
+import { ListItem, SharedList, Team, User, WSMessage } from '../../lib/types';
-import { api, buildWebSocketURL, triggerHaptic, createRealtimeConnection, RealtimeTransport } from '../../lib/api';
+import { api, triggerHaptic, createRealtimeConnection, RealtimeTransport } from '../../lib/api';
 import { UnifiedShareModal } from '../../components/UnifiedShareModal';
 import { AvatarStack, AvatarPerson } from '../../components/AvatarStack';
 import { CountBadge } from '../../components/CountBadge';
@@ -357,6 +356,7 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
       )
     );
     await api.deleteListItem(activeList.id, itemId);
+    onRefreshGlobal();
   };
 
   const handleClearCompleted = async () => {
@@ -501,7 +501,7 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
     if (!sourceItem) return;
 
     const targetCatNormalized = targetCategory.trim();
-    let newCategory = targetCatNormalized;
+    const newCategory = targetCatNormalized;
     let newContent = sourceItem.content;
 
     if (!targetCatNormalized) {
@@ -871,9 +871,9 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
                 >
                   <span>{lst.icon}</span>
                   {/* Counter on the label, like in the nav bar */}
-                  <span className={`relative inline-flex items-center ${openCount > 0 ? 'pr-2' : ''}`}>
+                  <span className={`relative inline-flex items-center ${openCount > 0 ? 'pr-3' : ''}`}>
                     {lst.title}
-                    <CountBadge count={openCount} position="corner" className="-top-1.5 -right-1" />
+                    <CountBadge count={openCount} position="corner" className="-top-0.5 -right-2" />
                   </span>
                   <AvatarStack
                     people={otherMembers(lst)}

frontend/src/features/settings/AdminSettingsView.tsx

@@ -25,8 +25,10 @@ import {
   UserRole,
 } from '../../lib/types';
 import { api, setCurrentSharingMode, triggerHaptic } from '../../lib/api';
+import { passwordProblem } from '../../lib/password';
 import { UserAvatar } from '../../components/UserAvatar';
 import { ToggleSwitch } from '../../components/ToggleSwitch';
+import { BackupAdminCard } from './BackupAdminCard';
 import { CountBadge } from '../../components/CountBadge';
 
 interface AdminSettingsViewProps {
@@ -134,6 +136,9 @@ export const AdminSettingsView: React.FC<AdminSettingsViewProps> = ({
           smtpSkipVerify: Boolean(sys.smtpSkipVerify),
           allowPrivateWebhooks: Boolean(sys.allowPrivateWebhooks),
           smtpConfiguredViaEnv: Boolean(sys.smtpConfiguredViaEnv),
+          backupEnabled: Boolean(sys.backupEnabled),
+          backupTime: sys.backupTime || '03:00',
+          backupRetentionDays: sys.backupRetentionDays || 3,
         });
       }
     } catch (err: any) {
@@ -151,6 +156,11 @@ export const AdminSettingsView: React.FC<AdminSettingsViewProps> = ({
   const handleCreateUser = async (e: React.FormEvent) => {
     e.preventDefault();
     setStatusMsg(null);
+    const problem = passwordProblem(newUserPassword);
+    if (problem) {
+      setStatusMsg({ type: 'err', text: problem });
+      return;
+    }
     triggerHaptic(15);
     try {
       const created = await api.adminCreateUser({
@@ -235,8 +245,14 @@ export const AdminSettingsView: React.FC<AdminSettingsViewProps> = ({
   const handleConfirmResetPassword = async (userId: string) => {
     if (!resetPwdVal.trim()) return;
     setStatusMsg(null);
+    const problem = passwordProblem(resetPwdVal);
+    if (problem) {
+      setStatusMsg({ type: 'err', text: problem });
+      return;
+    }
     try {
-      await api.adminResetPassword(userId, resetPwdVal.trim());
+      // Not trimmed: login compares the password exactly as typed
+      await api.adminResetPassword(userId, resetPwdVal);
       setResetPwdUserId(null);
       setResetPwdVal('');
       setStatusMsg({ type: 'ok', text: 'Passwort erfolgreich zurückgesetzt.' });
@@ -555,8 +571,7 @@ export const AdminSettingsView: React.FC<AdminSettingsViewProps> = ({
                         type="password"
                         value={newUserPassword}
                         onChange={(e) => setNewUserPassword(e.target.value)}
-                        placeholder="Mind. 4 Zeichen"
+                        placeholder="Mind. 8 Zeichen"
-                        minLength={4}
                         required
                         className="w-full min-w-0 h-8 px-2.5 input-field"
                       />
@@ -843,7 +858,7 @@ export const AdminSettingsView: React.FC<AdminSettingsViewProps> = ({
                             type="password"
                             value={resetPwdVal}
                             onChange={(e) => setResetPwdVal(e.target.value)}
-                            placeholder="Neues Passwort eingeben…"
+                            placeholder="Neues Passwort (mind. 8 Zeichen)…"
                             className="flex-1 h-7 px-2 input-field"
                           />
                           <button
@@ -1082,6 +1097,8 @@ export const AdminSettingsView: React.FC<AdminSettingsViewProps> = ({
                   )}
                 </div>
 
+                <BackupAdminCard settings={settings} onSave={(patch) => handleSaveSystemSettings(patch)} />
+
                 {/* Alarm webhooks into the local network (SSRF protection) */}
                 <div className="p-4 bg-canvas border border-border rounded-card flex items-center justify-between gap-4">
                   <div className="pr-4">

frontend/src/features/settings/ApiKeysPanel.tsx

@@ -0,0 +1,380 @@
+import React, { useEffect, useState } from 'react';
+import {
+  Key,
+  Plus,
+  Trash2,
+  Copy,
+  Check,
+  Webhook,
+  Zap,
+  Terminal,
+} from 'lucide-react';
+import { APIKey, ApiKeyScope, PriorityLevel, SharedList, TaskList } from '../../lib/types';
+import { api, triggerHaptic } from '../../lib/api';
+
+interface ApiKeysPanelProps {
+  onIngested?: () => void;
+}
+
+// What a key may deliver; keys never read anything
+const SCOPES: { id: ApiKeyScope; label: string; hint: string }[] = [
+  { id: 'webhook:triage', label: '📥 Triage / Inbox', hint: 'Gedanken in die Inbox' },
+  { id: 'webhook:task', label: '📋 Aufgaben', hint: 'Aufgaben direkt anlegen' },
+  { id: 'webhook:list', label: '📝 Listeneinträge', hint: 'Einträge zu Listen hinzufügen' },
+];
+const scopeLabel = (id: string) => SCOPES.find((s) => s.id === id)?.label || id;
+
+type SimTarget = 'triage' | 'task' | 'list_item';
+
+// Personal API keys with scopes, a simulator and copyable examples (settings → Private Webhooks)
+export const ApiKeysPanel: React.FC<ApiKeysPanelProps> = ({ onIngested }) => {
+  const [keys, setKeys] = useState<APIKey[]>([]);
+  const [newKeyName, setNewKeyName] = useState('');
+  const [newKeyScopes, setNewKeyScopes] = useState<ApiKeyScope[]>(['webhook:triage']);
+  const [newlyCreatedKey, setNewlyCreatedKey] = useState<string | null>(null);
+  const [copiedKey, setCopiedKey] = useState(false);
+
+  // Live Webhook Simulator State
+  const [simTitle, setSimTitle] = useState('Waschmaschine im Keller ist fertig!');
+  const [simPriority, setSimPriority] = useState<PriorityLevel>('high');
+  const [simTarget, setSimTarget] = useState<SimTarget>('triage');
+  const [simListId, setSimListId] = useState('');
+  const [simTaskListId, setSimTaskListId] = useState('');
+  const [simStatus, setSimStatus] = useState<string | null>(null);
+  const [lists, setLists] = useState<SharedList[]>([]);
+  const [taskLists, setTaskLists] = useState<TaskList[]>([]);
+
+  const loadKeys = async () => {
+    const k = await api.getAPIKeys();
+    setKeys(k);
+  };
+
+  useEffect(() => {
+    loadKeys();
+    api.getAllLists().then(setLists).catch(() => {});
+    api.getTaskLists().then(setTaskLists).catch(() => {});
+  }, []);
+
+  const toggleScope = (id: ApiKeyScope) => {
+    setNewKeyScopes((prev) => {
+      const next = prev.includes(id) ? prev.filter((s) => s !== id) : [...prev, id];
+      return next.length > 0 ? next : prev; // at least one
+    });
+  };
+
+  const handleCreateKey = async (e: React.FormEvent) => {
+    e.preventDefault();
+    triggerHaptic(15);
+    const created = await api.createAPIKey(newKeyName.trim() || 'Home Assistant', newKeyScopes);
+    if (created.rawKey) {
+      setNewlyCreatedKey(created.rawKey);
+    }
+    setNewKeyName('');
+    setNewKeyScopes(['webhook:triage']);
+    await loadKeys();
+  };
+
+  const handleDeleteKey = async (id: string) => {
+    if (!window.confirm('Diesen API-Schlüssel wirklich widerrufen?')) return;
+    triggerHaptic(20);
+    await api.deleteAPIKey(id);
+    await loadKeys();
+  };
+
+  const handleCopy = (text: string) => {
+    navigator.clipboard.writeText(text);
+    setCopiedKey(true);
+    setTimeout(() => setCopiedKey(false), 2000);
+  };
+
+  const handleSimulateWebhook = async () => {
+    triggerHaptic(20);
+    if (simTarget === 'list_item' && !simListId) {
+      setSimStatus('❌ Bitte eine Liste wählen.');
+      return;
+    }
+    try {
+      // With a freshly created key the simulator tests exactly that key (and its scopes)
+      await api.testWebhookIngest(newlyCreatedKey, {
+        title: simTitle,
+        priority: simPriority,
+        tags: simTarget === 'list_item' ? [] : ['smarthome', 'automation'],
+        target: simTarget,
+        taskListId: simTarget === 'task' ? simTaskListId || undefined : undefined,
+        listId: simTarget === 'list_item' ? simListId : undefined,
+      });
+      setSimStatus(
+        simTarget === 'task'
+          ? '✅ Webhook erfolgreich ausgelöst! Die Aufgabe ist angelegt.'
+          : simTarget === 'list_item'
+          ? '✅ Webhook erfolgreich ausgelöst! Der Eintrag steht in der Liste.'
+          : '✅ Webhook erfolgreich ausgelöst! Neue Karte liegt in deiner Inbox.'
+      );
+      onIngested?.();
+      setTimeout(() => setSimStatus(null), 4000);
+    } catch (err: any) {
+      setSimStatus(`❌ Fehler: ${err.message}`);
+    }
+  };
+
+  const exampleToken = newlyCreatedKey || 'mindsift_sec_dein_api_key';
+  const baseUrl = window.location.origin;
+  const examplePayload =
+    simTarget === 'task'
+      ? `{
+    "target": "task",
+    "title": "Filter der Lüftungsanlage wechseln",
+    "priority": "high",
+    "dueDate": "2026-11-15T09:00"${simTaskListId ? `,\n    "taskListId": "${simTaskListId}"` : ''}
+  }`
+      : simTarget === 'list_item'
+      ? `{
+    "target": "list_item",
+    "listId": "${simListId || 'ID_DER_LISTE'}",
+    "content": "Hafermilch",
+    "quantity": "2"
+  }`
+      : `{
+    "title": "Kellerfeuchtigkeit über 70%",
+    "priority": "urgent",
+    "tags": ["smarthome", "keller"]
+  }`;
+
+  return (
+    <div className="space-y-6">
+      {/* API keys */}
+      <div>
+        <div className="flex items-center gap-3 mb-2">
+          <div className="w-8 h-8 bg-accent text-on-accent flex items-center justify-center flex-shrink-0">
+            <Key className="w-4 h-4" />
+          </div>
+          <div>
+            <h3 className="text-sm font-bold text-main">Webhooks & Ingestion API-Schlüssel</h3>
+            <p className="text-xs text-muted">
+              Verbinde Home Assistant, Zigbee2MQTT, n8n oder eigene Cronjobs mit MindSift. Ein Key kann nur Daten
+              einliefern, nie lesen; was genau, legst du pro Key fest.
+            </p>
+          </div>
+        </div>
+
+        <form onSubmit={handleCreateKey} className="mt-3 space-y-2">
+          <div className="flex flex-col sm:flex-row gap-2">
+            <input
+              type="text"
+              value={newKeyName}
+              onChange={(e) => setNewKeyName(e.target.value)}
+              placeholder="Bezeichnung (z. B. Home Assistant, Proxmox Backup, Rauchmelder)…"
+              className="w-full sm:flex-1 min-w-0 h-11 sm:h-9 px-3 input-field text-base sm:text-sm"
+            />
+            <button type="submit" className="btn-primary h-11 sm:h-9 px-4 text-sm flex items-center justify-center gap-1.5">
+              <Plus className="w-4 h-4" />
+              <span>API-Key erzeugen</span>
+            </button>
+          </div>
+          <div className="flex flex-wrap items-center gap-2" role="group" aria-label="Berechtigungen des Keys">
+            <span className="text-xs text-muted">Darf einliefern:</span>
+            {SCOPES.map((sc) => {
+              const on = newKeyScopes.includes(sc.id);
+              return (
+                <button
+                  key={sc.id}
+                  type="button"
+                  role="checkbox"
+                  aria-checked={on}
+                  title={sc.hint}
+                  onClick={() => toggleScope(sc.id)}
+                  className={`h-11 sm:h-8 px-3 rounded-btn border text-xs inline-flex items-center gap-1.5 transition-colors ${
+                    on ? 'border-accent bg-accent/10 text-main' : 'border-border text-muted hover:text-main'
+                  }`}
+                >
+                  {on && <Check className="w-3.5 h-3.5 text-accent" />}
+                  {sc.label}
+                </button>
+              );
+            })}
+          </div>
+        </form>
+
+        {newlyCreatedKey && (
+          <div className="mt-3 p-3 bg-accent/15 border border-accent/30 flex flex-wrap items-center justify-between gap-3">
+            <div className="min-w-0">
+              <p className="text-xs font-semibold text-accent mb-1">Neuer API-Schlüssel erstellt (bitte jetzt kopieren):</p>
+              <code className="text-xs sm:text-sm font-mono text-main break-all">{newlyCreatedKey}</code>
+            </div>
+            <button onClick={() => handleCopy(newlyCreatedKey)} className="btn-primary h-8 px-3 text-xs">
+              {copiedKey ? <Check className="w-3.5 h-3.5" /> : <Copy className="w-3.5 h-3.5" />}
+              <span>{copiedKey ? 'Kopiert!' : 'Key kopieren'}</span>
+            </button>
+          </div>
+        )}
+
+        {/* Active Keys List */}
+        <div className="mt-3 border border-border divide-y divide-border">
+          {keys.length === 0 ? (
+            <p className="text-xs text-faint px-3 py-2">Noch keine dedizierten API-Schlüssel hinterlegt.</p>
+          ) : (
+            keys.map((k) => (
+              <div key={k.id} className="px-3 py-2 bg-canvas flex items-center justify-between gap-3">
+                <div className="min-w-0 flex flex-wrap items-center gap-x-3 gap-y-1">
+                  <span className="text-sm font-medium text-main">{k.name}</span>
+                  <span className="text-xs font-mono text-accent">{k.keyPrefix}</span>
+                  {k.scopes
+                    .split(',')
+                    .filter(Boolean)
+                    .map((sc) => (
+                      <span key={sc} className="px-1.5 py-0.5 rounded-btn border border-border text-[10px] text-muted">
+                        {scopeLabel(sc)}
+                      </span>
+                    ))}
+                  {k.lastUsedAt && (
+                    <span className="text-xs text-faint">
+                      Zuletzt genutzt: {new Date(k.lastUsedAt).toLocaleDateString('de-DE')}
+                    </span>
+                  )}
+                </div>
+                <button
+                  onClick={() => handleDeleteKey(k.id)}
+                  className="btn-icon btn-icon-danger w-7 h-7 shrink-0"
+                  aria-label={`API-Key ${k.name} löschen`}
+                >
+                  <Trash2 className="w-3.5 h-3.5" />
+                </button>
+              </div>
+            ))
+          )}
+        </div>
+      </div>
+
+      {/* Simulator */}
+      <div className="pt-4 border-t border-border">
+        <div className="flex items-center gap-3 mb-3">
+          <div className="w-7 h-7 bg-accent text-on-accent flex items-center justify-center flex-shrink-0">
+            <Webhook className="w-4 h-4" />
+          </div>
+          <div>
+            <h3 className="text-sm font-bold text-main">Live Smarthome Webhook-Simulator</h3>
+            <p className="text-xs text-muted">
+              Teste den Webhook-Endpunkt direkt hier
+              {newlyCreatedKey ? ' – mit dem eben erzeugten Key und seinen Berechtigungen.' : ' – mit deiner Anmeldung.'}
+            </p>
+          </div>
+        </div>
+
+        <div className="flex flex-wrap gap-1.5 mb-3" role="radiogroup" aria-label="Ziel">
+          {(
+            [
+              ['triage', '📥 Inbox'],
+              ['task', '📋 Aufgabe'],
+              ['list_item', '📝 Listeneintrag'],
+            ] as const
+          ).map(([value, label]) => (
+            <button
+              key={value}
+              type="button"
+              role="radio"
+              aria-checked={simTarget === value}
+              onClick={() => setSimTarget(value)}
+              className={`h-11 sm:h-8 px-3 rounded-btn border text-xs transition-colors ${
+                simTarget === value ? 'border-accent bg-accent/10 text-main' : 'border-border text-muted hover:text-main'
+              }`}
+            >
+              {label}
+            </button>
+          ))}
+          {simTarget === 'list_item' && (
+            <select
+              value={simListId}
+              onChange={(e) => setSimListId(e.target.value)}
+              className="h-11 sm:h-8 px-2 input-field text-base sm:text-xs bg-panel"
+              aria-label="Liste"
+            >
+              <option value="">Liste wählen…</option>
+              {lists.map((l) => (
+                <option key={l.id} value={l.id}>
+                  {l.icon} {l.title}
+                </option>
+              ))}
+            </select>
+          )}
+          {simTarget === 'task' && (
+            <select
+              value={simTaskListId}
+              onChange={(e) => setSimTaskListId(e.target.value)}
+              className="h-11 sm:h-8 px-2 input-field text-base sm:text-xs bg-panel"
+              aria-label="Aufgabenliste"
+            >
+              <option value="">Ohne Aufgabenliste</option>
+              {taskLists.map((tl) => (
+                <option key={tl.id} value={tl.id}>
+                  {tl.icon} {tl.title}
+                </option>
+              ))}
+            </select>
+          )}
+        </div>
+
+        {simTarget === 'triage' && (
+          <div className="flex flex-wrap gap-1.5 mb-3">
+            {[
+              { label: '🧺 Waschmaschine fertig', text: 'Waschmaschine im Keller ist fertig – Wäsche aufhängen!', prio: 'high' as PriorityLevel },
+              { label: '🚨 Rauchmelder Batterie', text: 'Rauchmelder Dachgeschoss meldet niedrige Batterie (12%)', prio: 'urgent' as PriorityLevel },
+              { label: '💧 Luftfeuchtigkeit Keller', text: 'Kellerfeuchtigkeit über 70% – Lüften oder Entfeuchter starten', prio: 'urgent' as PriorityLevel },
+            ].map((preset) => (
+              <button
+                key={preset.label}
+                type="button"
+                onClick={() => {
+                  setSimTitle(preset.text);
+                  setSimPriority(preset.prio);
+                }}
+                className="btn-action text-xs"
+              >
+                {preset.label}
+              </button>
+            ))}
+          </div>
+        )}
+
+        <div className="flex flex-col sm:flex-row gap-2">
+          <input
+            type="text"
+            value={simTitle}
+            onChange={(e) => setSimTitle(e.target.value)}
+            className="flex-1 h-11 sm:h-9 px-3 input-field text-base sm:text-sm"
+          />
+          <button
+            type="button"
+            onClick={handleSimulateWebhook}
+            className="btn-primary h-11 sm:h-9 px-4 text-xs sm:text-sm flex items-center justify-center gap-1.5"
+          >
+            <Zap className="w-4 h-4" />
+            <span>Webhook jetzt abfeuern</span>
+          </button>
+        </div>
+
+        {simStatus && (
+          <p className={`mt-3 text-xs font-medium ${simStatus.startsWith('❌') ? 'text-status-err' : 'text-status-ok'}`}>{simStatus}</p>
+        )}
+
+        {/* Code Example Snippets */}
+        <div className="mt-4 space-y-2">
+          <div className="flex items-center gap-2 text-xs font-medium text-muted">
+            <Terminal className="w-3.5 h-3.5 text-accent" />
+            <span>cURL / Home Assistant REST Command:</span>
+          </div>
+          <pre className="p-3 bg-canvas border border-border font-mono text-xs text-main overflow-x-auto">
+{`curl -X POST "${baseUrl}/api/v1/webhooks/ingest" \\
+  -H "X-API-Key: ${exampleToken}" \\
+  -H "Content-Type: application/json" \\
+  -d '${examplePayload}'`}
+          </pre>
+          <p className="text-[11px] text-faint">
+            Der Key gehört in den Header <code className="font-mono">X-API-Key</code>, nicht in die URL, damit er nicht in
+            Proxy-Logs landet. Fehlt dem Key die Berechtigung für das Ziel, antwortet der Server mit 403.
+          </p>
+        </div>
+      </div>
+
+    </div>
+  );
+};

frontend/src/features/settings/BackupAdminCard.tsx

@@ -0,0 +1,131 @@
+import React, { useEffect, useState } from 'react';
+import { Archive, Download, Loader2 } from 'lucide-react';
+import { BackupFile, SystemSettings } from '../../lib/types';
+import { api } from '../../lib/api';
+import { ToggleSwitch } from '../../components/ToggleSwitch';
+import { formatBytes, saveBlob } from '../../lib/download';
+
+interface BackupAdminCardProps {
+  settings: SystemSettings;
+  onSave: (patch: Partial<SystemSettings>) => void;
+}
+
+// Admin: automatic daily backups (whole database + one backup per user), list and manual run
+export const BackupAdminCard: React.FC<BackupAdminCardProps> = ({ settings, onSave }) => {
+  const [files, setFiles] = useState<BackupFile[]>([]);
+  const [running, setRunning] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+
+  useEffect(() => {
+    api.adminListBackups().then(setFiles).catch(() => {});
+  }, []);
+
+  const runNow = async () => {
+    setRunning(true);
+    setError(null);
+    try {
+      setFiles(await api.adminRunBackup());
+    } catch (err: any) {
+      setError(err.message || 'Backup fehlgeschlagen');
+      api.adminListBackups().then(setFiles).catch(() => {});
+    } finally {
+      setRunning(false);
+    }
+  };
+
+  const download = async (name: string) => {
+    try {
+      saveBlob(await api.adminDownloadBackup(name), name);
+    } catch (err: any) {
+      setError(err.message || 'Download fehlgeschlagen');
+    }
+  };
+
+  return (
+    <div className="p-4 bg-canvas border border-border rounded-card space-y-3">
+      <div className="flex items-center justify-between gap-4">
+        <div className="pr-4">
+          <p className="font-bold text-main flex items-center gap-1.5">
+            <Archive className="w-3.5 h-3.5 text-accent" />
+            Automatische Backups
+          </p>
+          <p className="text-[11px] text-muted mt-0.5">
+            Täglich ein Abzug der ganzen Datenbank und ein Backup je Benutzer unter <code className="font-mono">backups/</code> im
+            Datenverzeichnis. Das schützt vor Fehlbedienung, nicht vor einer kaputten Platte: den Ordner zusätzlich woanders sichern.
+          </p>
+        </div>
+        <ToggleSwitch
+          checked={Boolean(settings.backupEnabled)}
+          onChange={(backupEnabled) => onSave({ backupEnabled })}
+          title={settings.backupEnabled ? 'Automatische Backups ausschalten' : 'Automatische Backups einschalten'}
+        />
+      </div>
+
+      <div className="flex flex-wrap items-end gap-3">
+        <label className="text-[11px] text-muted">
+          Uhrzeit
+          <input
+            type="time"
+            value={settings.backupTime || '03:00'}
+            onChange={(e) => e.target.value && onSave({ backupTime: e.target.value })}
+            className="block mt-1 h-11 sm:h-8 px-2 input-field text-base sm:text-xs w-28"
+          />
+        </label>
+        <label className="text-[11px] text-muted">
+          Aufbewahren (Tage)
+          <input
+            type="number"
+            min={1}
+            max={365}
+            value={settings.backupRetentionDays || 3}
+            onChange={(e) => {
+              const n = parseInt(e.target.value, 10);
+              if (n >= 1 && n <= 365) onSave({ backupRetentionDays: n });
+            }}
+            className="block mt-1 h-11 sm:h-8 px-2 input-field text-base sm:text-xs w-24"
+          />
+        </label>
+        <button
+          type="button"
+          onClick={runNow}
+          disabled={running}
+          className="btn-action h-11 sm:h-8 px-3 text-xs inline-flex items-center gap-1.5 disabled:opacity-50"
+        >
+          {running ? <Loader2 className="w-3.5 h-3.5 animate-spin" /> : <Archive className="w-3.5 h-3.5 text-accent" />}
+          {running ? 'Sichere…' : 'Jetzt sichern'}
+        </button>
+      </div>
+      {error && <p className="text-[11px] text-status-err">{error}</p>}
+
+      <div className="border border-border divide-y divide-border bg-panel">
+        {files.length === 0 ? (
+          <p className="p-3 text-[11px] text-faint">Noch keine Server-Backups vorhanden.</p>
+        ) : (
+          files.map((f) => (
+            <div key={f.name} className="px-3 py-2 flex items-center justify-between gap-3">
+              <div className="min-w-0">
+                <p className="text-xs font-mono text-main truncate">{f.name}</p>
+                <p className="text-[11px] text-faint">
+                  {new Date(f.createdAt).toLocaleString('de-DE')} · {formatBytes(f.size)}
+                </p>
+              </div>
+              <button
+                type="button"
+                onClick={() => download(f.name)}
+                className="btn-action h-11 sm:h-7 px-2.5 text-[11px] inline-flex items-center gap-1 shrink-0"
+              >
+                <Download className="w-3.5 h-3.5" />
+                Download
+              </button>
+            </div>
+          ))
+        )}
+      </div>
+      <p className="text-[11px] text-faint">
+        Zurückspielen eines Datenbank-Abzugs: Container stoppen, <code className="font-mono">mindsift.db</code> durch die entpackte Datei
+        ersetzen (<code className="font-mono">gunzip</code>), Container starten. Einzelne Benutzer stellen ihre Daten selbst in den
+        Kontoeinstellungen wieder her.
+      </p>
+    </div>
+  );
+};

frontend/src/features/settings/EcosystemView.tsx

@@ -1,283 +0,0 @@
-import React, { useEffect, useState } from 'react';
-import {
-  Key,
-  Plus,
-  Trash2,
-  Copy,
-  Check,
-  Webhook,
-  Download,
-  ShieldCheck,
-  Zap,
-  Terminal,
-} from 'lucide-react';
-import { APIKey, PriorityLevel } from '../../lib/types';
-import { api, getToken, triggerHaptic } from '../../lib/api';
-
-interface EcosystemViewProps {
-  onIngested: () => void;
-}
-
-export const EcosystemView: React.FC<EcosystemViewProps> = ({ onIngested }) => {
-  const [keys, setKeys] = useState<APIKey[]>([]);
-  const [newKeyName, setNewKeyName] = useState('');
-  const [newlyCreatedKey, setNewlyCreatedKey] = useState<string | null>(null);
-  const [copiedKey, setCopiedKey] = useState(false);
-
-  // Live Webhook Simulator State
-  const [simTitle, setSimTitle] = useState('Waschmaschine im Keller ist fertig!');
-  const [simPriority, setSimPriority] = useState<PriorityLevel>('high');
-  const [simStatus, setSimStatus] = useState<string | null>(null);
-
-  const loadKeys = async () => {
-    const k = await api.getAPIKeys();
-    setKeys(k);
-  };
-
-  useEffect(() => {
-    loadKeys();
-  }, []);
-
-  const handleCreateKey = async (e: React.FormEvent) => {
-    e.preventDefault();
-    triggerHaptic(15);
-    const created = await api.createAPIKey(newKeyName.trim() || 'Home Assistant');
-    if (created.rawKey) {
-      setNewlyCreatedKey(created.rawKey);
-    }
-    setNewKeyName('');
-    await loadKeys();
-  };
-
-  const handleDeleteKey = async (id: string) => {
-    triggerHaptic(20);
-    await api.deleteAPIKey(id);
-    await loadKeys();
-  };
-
-  const handleCopy = (text: string) => {
-    navigator.clipboard.writeText(text);
-    setCopiedKey(true);
-    setTimeout(() => setCopiedKey(false), 2000);
-  };
-
-  const handleSimulateWebhook = async () => {
-    triggerHaptic(20);
-    const tokenToUse = newlyCreatedKey || getToken() || '';
-    try {
-      await api.testWebhookIngest(tokenToUse, simTitle, simPriority, ['smarthome', 'automation']);
-      setSimStatus('✅ Webhook erfolgreich ausgelöst! Neue Karte liegt in deiner Inbox.');
-      onIngested();
-      setTimeout(() => setSimStatus(null), 4000);
-    } catch (err: any) {
-      setSimStatus(`❌ Fehler: ${err.message}`);
-    }
-  };
-
-  const handleFullExport = async () => {
-    triggerHaptic(15);
-    const data = await api.exportAll();
-    const blob = new Blob([JSON.stringify(data, null, 2)], {
-      type: 'application/json;charset=utf-8',
-    });
-    const url = URL.createObjectURL(blob);
-    const a = document.createElement('a');
-    a.href = url;
-    a.download = `mindsift-backup-${new Date().toISOString().slice(0, 10)}.json`;
-    a.click();
-    URL.revokeObjectURL(url);
-  };
-
-  const exampleToken = newlyCreatedKey || 'mindsift_sec_dein_api_key';
-  const baseUrl = window.location.origin;
-
-  return (
-    <div className="w-full panel-surface divide-y divide-border">
-      {/* Section 1: API Keys for Smarthome & Automation */}
-      <div className="p-4">
-        <div className="flex items-center gap-3 mb-2">
-          <div className="w-8 h-8 bg-accent text-white flex items-center justify-center flex-shrink-0">
-            <Key className="w-4 h-4" />
-          </div>
-          <div>
-            <h3 className="text-base font-bold text-white">
-              Webhooks & Ingestion API-Schlüssel
-            </h3>
-            <p className="text-xs sm:text-sm text-zinc-400">
-              Verbinde Home Assistant, Zigbee2MQTT, n8n oder eigene Cronjobs direkt mit deiner MindSift Inbox.
-            </p>
-          </div>
-        </div>
-
-        <form onSubmit={handleCreateKey} className="mt-3 flex flex-col sm:flex-row gap-2">
-          <input
-            type="text"
-            value={newKeyName}
-            onChange={(e) => setNewKeyName(e.target.value)}
-            placeholder="Bezeichnung (z. B. Home Assistant, Proxmox Backup, Rauchmelder)…"
-            className="w-full sm:flex-1 min-w-0 h-11 sm:h-9 px-3 input-field text-base sm:text-sm"
-          />
-          <button
-            type="submit"
-            className="btn-primary h-11 sm:h-9 px-4 text-sm flex items-center justify-center gap-1.5"
-          >
-            <Plus className="w-4 h-4" />
-            <span>API-Key erzeugen</span>
-          </button>
-        </form>
-
-        {newlyCreatedKey && (
-          <div className="mt-3 p-3 bg-accent/15 border border-accent/30 flex flex-wrap items-center justify-between gap-3">
-            <div className="min-w-0">
-              <p className="text-xs font-semibold text-accent mb-1">
-                Neuer API-Schlüssel erstellt (bitte jetzt kopieren):
-              </p>
-              <code className="text-xs sm:text-sm font-mono text-white break-all">
-                {newlyCreatedKey}
-              </code>
-            </div>
-            <button
-              onClick={() => handleCopy(newlyCreatedKey)}
-              className="btn-primary h-8 px-3 text-xs"
-            >
-              {copiedKey ? <Check className="w-3.5 h-3.5" /> : <Copy className="w-3.5 h-3.5" />}
-              <span>{copiedKey ? 'Kopiert!' : 'Key kopieren'}</span>
-            </button>
-          </div>
-        )}
-
-        {/* Active Keys List */}
-        <div className="mt-3 border border-border divide-y divide-border">
-          {keys.length === 0 ? (
-            <p className="text-xs text-zinc-500 px-3 py-2">
-              Noch keine dedizierten API-Schlüssel hinterlegt.
-            </p>
-          ) : (
-            keys.map((k) => (
-              <div
-                key={k.id}
-                className="px-3 py-1.5 bg-canvas flex items-center justify-between gap-3"
-              >
-                <div>
-                  <span className="text-sm font-medium text-white">{k.name}</span>
-                  <span className="ml-3 text-xs font-mono text-accent">{k.keyPrefix}</span>
-                  {k.lastUsedAt && (
-                    <span className="ml-3 text-xs text-zinc-500">
-                      Zuletzt genutzt: {new Date(k.lastUsedAt).toLocaleDateString('de-DE')}
-                    </span>
-                  )}
-                </div>
-                <button
-                  onClick={() => handleDeleteKey(k.id)}
-                  className="btn-icon btn-icon-danger w-7 h-7"
-                >
-                  <Trash2 className="w-3.5 h-3.5" />
-                </button>
-              </div>
-            ))
-          )}
-        </div>
-      </div>
-
-      {/* Section 2: Interactive Smarthome Webhook Simulator */}
-      <div className="p-4">
-        <div className="flex items-center gap-3 mb-3">
-          <div className="w-7 h-7 bg-accent text-white flex items-center justify-center flex-shrink-0">
-            <Webhook className="w-4 h-4" />
-          </div>
-          <div>
-            <h3 className="text-base font-bold text-white">
-              Live Smarthome Webhook-Simulator
-            </h3>
-            <p className="text-xs sm:text-sm text-zinc-400">
-              Teste den Webhook-Endpunkt direkt hier – das Event landet sofort als Karte im Triage-Deck.
-            </p>
-          </div>
-        </div>
-
-        <div className="flex flex-wrap gap-1.5 mb-3">
-          {[
-            { label: '🧺 Waschmaschine fertig', text: 'Waschmaschine im Keller ist fertig – Wäsche aufhängen!', prio: 'high' as PriorityLevel },
-            { label: '🚨 Rauchmelder Batterie', text: 'Rauchmelder Dachgeschoss meldet niedrige Batterie (12%)', prio: 'urgent' as PriorityLevel },
-            { label: '💧 Luftfeuchtigkeit Keller', text: 'Kellerfeuchtigkeit über 70% – Lüften oder Entfeuchter starten', prio: 'urgent' as PriorityLevel },
-          ].map((preset) => (
-            <button
-              key={preset.label}
-              type="button"
-              onClick={() => {
-                setSimTitle(preset.text);
-                setSimPriority(preset.prio);
-              }}
-              className="btn-action text-xs"
-            >
-              {preset.label}
-            </button>
-          ))}
-        </div>
-
-        <div className="flex flex-col sm:flex-row gap-2">
-          <input
-            type="text"
-            value={simTitle}
-            onChange={(e) => setSimTitle(e.target.value)}
-            className="flex-1 h-9 px-3 input-field text-sm"
-          />
-          <button
-            type="button"
-            onClick={handleSimulateWebhook}
-            className="btn-primary h-9 px-4 text-xs sm:text-sm flex items-center gap-1.5"
-          >
-            <Zap className="w-4 h-4" />
-            <span>Webhook jetzt abfeuern</span>
-          </button>
-        </div>
-
-        {simStatus && (
-          <p className="mt-3 text-xs font-medium text-accent">{simStatus}</p>
-        )}
-
-        {/* Code Example Snippets */}
-        <div className="mt-4 space-y-2">
-          <div className="flex items-center gap-2 text-xs font-medium text-zinc-400">
-            <Terminal className="w-3.5 h-3.5 text-accent" />
-            <span>cURL / Home Assistant REST Command:</span>
-          </div>
-          <pre className="p-3 bg-canvas border border-border font-mono text-xs text-zinc-300 overflow-x-auto">
-{`curl -X POST "${baseUrl}/api/v1/webhooks/ingest?token=${exampleToken}" \\
-  -H "Content-Type: application/json" \\
-  -d '{
-    "title": "Kellerfeuchtigkeit über 70%",
-    "priority": "urgent",
-    "tags": ["smarthome", "keller"]
-  }'`}
-          </pre>
-        </div>
-      </div>
-
-      {/* Section 3: Data Sovereignty & Export */}
-      <div className="p-4 flex flex-col sm:flex-row items-start sm:items-center justify-between gap-4">
-        <div className="flex items-center gap-3">
-          <div className="w-7 h-7 bg-accent text-white flex items-center justify-center flex-shrink-0">
-            <ShieldCheck className="w-4 h-4" />
-          </div>
-          <div>
-            <h3 className="text-base font-bold text-white">
-              100 % Datensouveränität & Komplett-Export
-            </h3>
-            <p className="text-xs sm:text-sm text-zinc-400">
-              Exportiere jederzeit alle Gedanken, Aufgaben, Dokumente und geteilten Listen als portables JSON-Archiv.
-            </p>
-          </div>
-        </div>
-
-        <button
-          onClick={handleFullExport}
-          className="btn-primary h-9 px-4 text-xs sm:text-sm flex items-center gap-2"
-        >
-          <Download className="w-4 h-4" />
-          <span>Komplett-Backup (.json)</span>
-        </button>
-      </div>
-    </div>
-  );
-};

frontend/src/features/settings/ImportCard.tsx

@@ -1,6 +1,7 @@
 import React, { useRef, useState } from 'react';
 import { Upload, Check, AlertCircle, FileArchive } from 'lucide-react';
-import { ImportSummary } from '../../lib/types';
+import { DATA_SECTIONS, DataSection, ImportSummary } from '../../lib/types';
+import { SectionPicker } from './SectionPicker';
 import { api } from '../../lib/api';
 
 interface ImportCardProps {
@@ -18,6 +19,7 @@ const summaryParts = (s: ImportSummary) =>
     s.tasks && `${s.tasks} Aufgabe${s.tasks === 1 ? '' : 'n'}`,
     s.lists && `${s.lists} Liste${s.lists === 1 ? '' : 'n'} mit ${s.listItems} Einträgen`,
     s.inbox && `${s.inbox} Gedanke${s.inbox === 1 ? '' : 'n'} für die Triage`,
+    s.themes && `${s.themes} Theme${s.themes === 1 ? '' : 's'}`,
   ].filter(Boolean) as string[];
 
 // One import path: drop or pick a file, see a preview of what would be created, then import.
@@ -33,6 +35,9 @@ export const ImportCard: React.FC<ImportCardProps> = ({ source, title, descripti
   // MindSift data can replace the current state instead of being added next to it
   const [mode, setMode] = useState<'merge' | 'restore'>('merge');
   const [confirmRestore, setConfirmRestore] = useState(false);
+  // MindSift data: which parts to take from the file
+  const [sections, setSections] = useState<DataSection[]>(DATA_SECTIONS.map((s) => s.id));
+  const sectionParam = source === 'mindsift' ? sections : undefined;
   const restoring = source === 'mindsift' && mode === 'restore';
 
   const reset = () => {
@@ -49,7 +54,7 @@ export const ImportCard: React.FC<ImportCardProps> = ({ source, title, descripti
     setFile(f);
     setBusy(true);
     try {
-      setPreview(await api.importData(source, f, true));
+      setPreview(await api.importData(source, f, true, 'merge', sectionParam));
     } catch (err: any) {
       setError(err.message || 'Datei konnte nicht gelesen werden');
     } finally {
@@ -62,7 +67,7 @@ export const ImportCard: React.FC<ImportCardProps> = ({ source, title, descripti
     setBusy(true);
     setError(null);
     try {
-      setResult(await api.importData(source, file, false, restoring ? 'restore' : 'merge'));
+      setResult(await api.importData(source, file, false, restoring ? 'restore' : 'merge', sectionParam));
       setFile(null);
       setPreview(null);
       setConfirmRestore(false);
@@ -87,7 +92,7 @@ export const ImportCard: React.FC<ImportCardProps> = ({ source, title, descripti
           {(
             [
               ['merge', 'Hinzufügen', 'Bestehende Daten behalten, Backup daneben anlegen.'],
-              ['restore', 'Wiederherstellen', 'Eigene Notizen, Aufgaben und Listen vorher löschen.'],
+              ['restore', 'Wiederherstellen', 'Gewählte Bereiche vorher leeren.'],
             ] as const
           ).map(([value, label, text]) => (
             <button
@@ -114,6 +119,24 @@ export const ImportCard: React.FC<ImportCardProps> = ({ source, title, descripti
         </div>
       )}
 
+      {source === 'mindsift' && (
+        <SectionPicker
+          value={sections}
+          onChange={(next) => {
+            setSections(next);
+            // The preview depends on the sections, so a picked file is read again
+            if (file) {
+              setBusy(true);
+              api
+                .importData(source, file, true, 'merge', next)
+                .then(setPreview)
+                .catch((err) => setError(err.message))
+                .finally(() => setBusy(false));
+            }
+          }}
+        />
+      )}
+
       <div
         onDragOver={(e) => {
           e.preventDefault();
@@ -194,8 +217,9 @@ export const ImportCard: React.FC<ImportCardProps> = ({ source, title, descripti
                 className="mt-0.5 w-4 h-4 shrink-0"
               />
               <span>
-                <strong className="text-status-err">Achtung:</strong> Alle deine bisherigen Notizen, Ordner, Aufgaben, Gedanken und
+                <strong className="text-status-err">Achtung:</strong> Deine bisherigen Daten in den gewählten Bereichen
-                Listen werden vor dem Import unwiderruflich gelöscht und durch das Backup ersetzt. Mit dir geteilte Inhalte anderer
+                ({DATA_SECTIONS.filter((x) => sections.includes(x.id)).map((x) => x.label).join(', ')}) werden vor dem Import
+                unwiderruflich gelöscht und durch das Backup ersetzt. Mit dir geteilte Inhalte anderer
                 bleiben erhalten.
               </span>
             </label>

frontend/src/features/settings/SectionPicker.tsx

@@ -0,0 +1,37 @@
+import React from 'react';
+import { Check } from 'lucide-react';
+import { DATA_SECTIONS, DataSection } from '../../lib/types';
+
+interface SectionPickerProps {
+  value: DataSection[];
+  onChange: (sections: DataSection[]) => void;
+  label?: string;
+}
+
+// Which parts of the own data a restore or import covers; at least one stays selected
+export const SectionPicker: React.FC<SectionPickerProps> = ({ value, onChange, label = 'Bereiche' }) => (
+  <div className="flex flex-wrap items-center gap-1.5" role="group" aria-label={label}>
+    <span className="text-[11px] text-muted mr-1">{label}:</span>
+    {DATA_SECTIONS.map((sec) => {
+      const on = value.includes(sec.id);
+      return (
+        <button
+          key={sec.id}
+          type="button"
+          role="checkbox"
+          aria-checked={on}
+          onClick={() => {
+            const next = on ? value.filter((v) => v !== sec.id) : [...value, sec.id];
+            if (next.length > 0) onChange(next);
+          }}
+          className={`h-11 sm:h-7 px-2.5 rounded-btn border text-[11px] inline-flex items-center gap-1 transition-colors ${
+            on ? 'border-accent bg-accent/10 text-main' : 'border-border text-muted hover:text-main'
+          }`}
+        >
+          {on && <Check className="w-3 h-3 text-accent" />}
+          {sec.label}
+        </button>
+      );
+    })}
+  </div>
+);

frontend/src/features/settings/ServerBackupsCard.tsx

@@ -0,0 +1,151 @@
+import React, { useEffect, useState } from 'react';
+import { Archive, Check, Download, RotateCcw } from 'lucide-react';
+import { BackupFile, DataSection, DATA_SECTIONS, ImportSummary } from '../../lib/types';
+import { api } from '../../lib/api';
+import { formatBytes, saveBlob } from '../../lib/download';
+import { SectionPicker } from './SectionPicker';
+
+// The user's own automatic backups on the server: download or restore (all or some sections)
+export const ServerBackupsCard: React.FC = () => {
+  const [files, setFiles] = useState<BackupFile[]>([]);
+  const [open, setOpen] = useState<string | null>(null); // backup being restored
+  const [mode, setMode] = useState<'merge' | 'restore'>('restore');
+  const [sections, setSections] = useState<DataSection[]>(DATA_SECTIONS.map((s) => s.id));
+  const [confirm, setConfirm] = useState(false);
+  const [busy, setBusy] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [result, setResult] = useState<ImportSummary | null>(null);
+
+  useEffect(() => {
+    api.listMyBackups().then(setFiles).catch(() => {});
+  }, []);
+
+  const startRestore = (name: string) => {
+    setOpen(open === name ? null : name);
+    setConfirm(false);
+    setError(null);
+    setResult(null);
+  };
+
+  const restore = async () => {
+    if (!open) return;
+    setBusy(true);
+    setError(null);
+    try {
+      setResult(await api.restoreMyBackup(open, mode, sections));
+      setConfirm(false);
+    } catch (err: any) {
+      setError(err.message || 'Wiederherstellen fehlgeschlagen');
+    } finally {
+      setBusy(false);
+    }
+  };
+
+  const sectionNames = DATA_SECTIONS.filter((s) => sections.includes(s.id))
+    .map((s) => s.label)
+    .join(', ');
+
+  return (
+    <div className="space-y-2">
+      <div>
+        <h3 className="font-bold text-main flex items-center gap-1.5">
+          <Archive className="w-3.5 h-3.5 text-accent" />
+          Server-Backups
+        </h3>
+        <p className="text-muted text-[11px] mt-0.5">
+          Automatische tägliche Sicherungen deiner Daten auf dem Server (falls die Administration sie eingeschaltet hat).
+        </p>
+      </div>
+      <div className="border border-border divide-y divide-border bg-canvas">
+        {files.length === 0 ? (
+          <p className="p-3 text-[11px] text-faint">Noch keine Server-Backups vorhanden.</p>
+        ) : (
+          files.map((f) => (
+            <div key={f.name} className="p-3 space-y-2">
+              <div className="flex flex-wrap items-center justify-between gap-2">
+                <div className="min-w-0">
+                  <p className="text-xs font-semibold text-main">{new Date(f.createdAt).toLocaleString('de-DE')}</p>
+                  <p className="text-[11px] text-faint">{formatBytes(f.size)}</p>
+                </div>
+                <div className="flex gap-2">
+                  <button
+                    type="button"
+                    onClick={async () => saveBlob(await api.downloadMyBackup(f.name), f.name)}
+                    className="btn-action h-11 sm:h-7 px-2.5 text-[11px] inline-flex items-center gap-1"
+                  >
+                    <Download className="w-3.5 h-3.5" />
+                    Download
+                  </button>
+                  <button
+                    type="button"
+                    onClick={() => startRestore(f.name)}
+                    aria-expanded={open === f.name}
+                    className="btn-action h-11 sm:h-7 px-2.5 text-[11px] inline-flex items-center gap-1"
+                  >
+                    <RotateCcw className="w-3.5 h-3.5 text-accent" />
+                    Wiederherstellen
+                  </button>
+                </div>
+              </div>
+
+              {open === f.name && (
+                <div className="p-3 rounded-card border border-border bg-panel space-y-2.5">
+                  <div className="grid grid-cols-1 sm:grid-cols-2 gap-2" role="radiogroup" aria-label="Art der Wiederherstellung">
+                    {(
+                      [
+                        ['restore', 'Ersetzen', 'Gewählte Bereiche vorher leeren.'],
+                        ['merge', 'Hinzufügen', 'Bestehendes behalten, Backup daneben anlegen.'],
+                      ] as const
+                    ).map(([value, label, text]) => (
+                      <button
+                        key={value}
+                        type="button"
+                        role="radio"
+                        aria-checked={mode === value}
+                        onClick={() => {
+                          setMode(value);
+                          setConfirm(false);
+                        }}
+                        className={`p-2 min-h-[44px] text-left border rounded-card transition-colors ${
+                          mode === value ? (value === 'restore' ? 'border-status-err bg-status-err/10' : 'border-accent bg-accent/10') : 'border-border'
+                        }`}
+                      >
+                        <span className="block text-xs font-semibold text-main">{label}</span>
+                        <span className="block text-[11px] text-muted">{text}</span>
+                      </button>
+                    ))}
+                  </div>
+                  <SectionPicker value={sections} onChange={setSections} />
+                  {result ? (
+                    <p className="text-[11px] text-status-ok flex items-center gap-1">
+                      <Check className="w-3.5 h-3.5" /> Wiederhergestellt: {result.notes} Notizen, {result.tasks} Aufgaben, {result.lists} Listen,{' '}
+                      {result.inbox} Gedanken, {result.themes ?? 0} Themes.
+                    </p>
+                  ) : (
+                    <button
+                      type="button"
+                      disabled={busy}
+                      onClick={() => (mode === 'restore' && !confirm ? setConfirm(true) : restore())}
+                      className={`h-11 sm:h-8 px-4 text-xs font-semibold disabled:opacity-50 ${
+                        mode === 'restore' ? 'btn-action border-status-err text-status-err' : 'btn-primary'
+                      }`}
+                    >
+                      {busy
+                        ? 'Stelle wieder her…'
+                        : mode === 'restore' && confirm
+                        ? `Wirklich ${sectionNames} ersetzen?`
+                        : mode === 'restore'
+                        ? 'Ersetzen'
+                        : 'Hinzufügen'}
+                    </button>
+                  )}
+                  {error && <p className="text-[11px] text-status-err">{error}</p>}
+                </div>
+              )}
+            </div>
+          ))
+        )}
+      </div>
+    </div>
+  );
+};

frontend/src/features/settings/UserSettingsView.tsx

@@ -3,9 +3,7 @@ import {
   User as UserIcon,
   Bell,
   Key,
-  Plus,
   Trash2,
-  Terminal,
   Download,
   ArrowLeft,
   Check,
@@ -16,12 +14,15 @@ import {
   AlertCircle,
   Palette,
   Upload,
-  Camera,
   Pencil,
   Copy,
 } from 'lucide-react';
-import { APIKey, AuthStatus, User, UserTheme } from '../../lib/types';
+import { AuthStatus, User, UserTheme } from '../../lib/types';
+import { ApiKeysPanel } from './ApiKeysPanel';
+import { ServerBackupsCard } from './ServerBackupsCard';
+import { saveBlob } from '../../lib/download';
 import { api, clearToken, triggerHaptic } from '../../lib/api';
+import { passwordProblem } from '../../lib/password';
 import { customThemeId, ThemeId, ThemeOption } from '../../lib/theme';
 import themeTemplateCss from '../../themes/theme-template.css?raw';
 import { UserAvatar, resizeImageToDataUrl } from '../../components/UserAvatar';
@@ -207,12 +208,6 @@ export const UserSettingsView: React.FC<UserSettingsViewProps> = ({
   const [savingAlarms, setSavingAlarms] = useState(false);
   const [testingChannel, setTestingChannel] = useState<string | null>(null);
 
-  // --- Webhooks & API Keys State ---
-  const [apiKeys, setApiKeys] = useState<APIKey[]>([]);
-  const [newKeyName, setNewKeyName] = useState('');
-  const [newlyCreatedKey, setNewlyCreatedKey] = useState<string | null>(null);
-  const [copiedLabel, setCopiedLabel] = useState<string | null>(null);
-
   useEffect(() => {
     setDisplayName(currentUser.displayName || '');
     setEmail(currentUser.email || '');
@@ -224,19 +219,6 @@ export const UserSettingsView: React.FC<UserSettingsViewProps> = ({
     setNotifyBeforeMinutes(currentUser.notifyBeforeMinutes ?? 30);
   }, [currentUser]);
 
-  useEffect(() => {
-    loadKeys();
-  }, []);
-
-  const loadKeys = async () => {
-    try {
-      const keys = await api.getAPIKeys();
-      setApiKeys(keys);
-    } catch {
-      // ignore
-    }
-  };
-
   const toggleAlarmChannel = (ch: string) => {
     setAlarmChannels((prev) =>
       prev.includes(ch) ? prev.filter((item) => item !== ch) : [...prev, ch]
@@ -283,7 +265,13 @@ export const UserSettingsView: React.FC<UserSettingsViewProps> = ({
         avatarUrl: avatarUrl.trim(),
       };
       if (newPassword.trim()) {
-        patch.password = newPassword.trim();
+        const problem = passwordProblem(newPassword);
+        if (problem) {
+          setProfileMsg({ type: 'err', text: problem });
+          return;
+        }
+        // Not trimmed: login compares the password exactly as typed
+        patch.password = newPassword;
       }
       const updated = await api.updateSettings(patch);
       onUserUpdated(updated);
@@ -375,45 +363,8 @@ export const UserSettingsView: React.FC<UserSettingsViewProps> = ({
     }
   };
 
-  // --- Handlers: Webhooks & Export ---
+  // --- Handlers: Export ---
-  const handleCreateAPIKey = async (e: React.FormEvent) => {
-    e.preventDefault();
-    triggerHaptic(15);
-    try {
-      const created = await api.createAPIKey(newKeyName.trim() || 'Eigenes Skript / Webhook');
-      if (created.rawKey) {
-        setNewlyCreatedKey(created.rawKey);
-      }
-      setNewKeyName('');
-      loadKeys();
-    } catch (err: any) {
-      alert(err.message);
-    }
-  };
-
-  const handleDeleteAPIKey = async (id: string) => {
-    if (!window.confirm('Diesen API-Schlüssel wirklich widerrufen?')) return;
-    await api.deleteAPIKey(id);
-    loadKeys();
-  };
-
-  const handleCopy = (text: string, label: string) => {
-    navigator.clipboard.writeText(text);
-    setCopiedLabel(label);
-    setTimeout(() => setCopiedLabel(null), 2000);
-  };
-
   // Works on mobile browsers too: the link must be in the document and the URL alive until the click ran
-  const saveBlob = (blob: Blob, filename: string) => {
-    const url = URL.createObjectURL(blob);
-    const a = document.createElement('a');
-    a.href = url;
-    a.download = filename;
-    document.body.appendChild(a);
-    a.click();
-    a.remove();
-    window.setTimeout(() => URL.revokeObjectURL(url), 10000);
-  };
 
   const [exportingBackup, setExportingBackup] = useState(false);
   const handleExportData = async () => {
@@ -441,20 +392,6 @@ export const UserSettingsView: React.FC<UserSettingsViewProps> = ({
     }
   };
 
-  const baseUrl = window.location.origin;
-  const activeKeyPlaceholder =
-    newlyCreatedKey || (apiKeys[0]?.keyPrefix ? apiKeys[0].keyPrefix + '••••••••' : 'DEIN_API_KEY');
-
-  const curlTriageExample = `curl -X POST ${baseUrl}/api/v1/inbox \\
-  -H "X-API-Key: ${activeKeyPlaceholder}" \\
-  -H "Content-Type: application/json" \\
-  -d '{"content": "Kellerfeuchtigkeit über 68% gestiegen – Entfeuchter prüfen #smarthome #alarm", "priority": "urgent"}'`;
-
-  const curlTaskExample = `curl -X POST ${baseUrl}/api/v1/inbox \\
-  -H "X-API-Key: ${activeKeyPlaceholder}" \\
-  -H "Content-Type: application/json" \\
-  -d '{"content": "Server-Alarm prüfen #monitoring", "priority": "urgent", "target": "task"}'`;
-
   const roleBadgeLabel =
     currentUser.role === 'admin'
       ? 'Server-Admin'
@@ -696,7 +633,7 @@ export const UserSettingsView: React.FC<UserSettingsViewProps> = ({
                     type="password"
                     value={newPassword}
                     onChange={(e) => setNewPassword(e.target.value)}
-                    placeholder="Mindestens 4 Zeichen"
+                    placeholder="Mindestens 8 Zeichen"
                     className="w-full h-9 px-3 input-field"
                   />
                 </div>
@@ -1219,107 +1156,10 @@ export const UserSettingsView: React.FC<UserSettingsViewProps> = ({
                 </p>
               </div>
 
-              {/* Create API Key */}
+              <ApiKeysPanel />
-              <form onSubmit={handleCreateAPIKey} className="flex flex-col sm:flex-row gap-2">
-                <input
-                  type="text"
-                  value={newKeyName}
-                  onChange={(e) => setNewKeyName(e.target.value)}
-                  placeholder="Bezeichnung des Schlüssels (z.B. Proxmox Monitoring, Discord-Forwarder)…"
-                  className="w-full sm:flex-1 min-w-0 h-11 sm:h-9 px-3 input-field text-base sm:text-xs"
-                />
-                <button
-                  type="submit"
-                  className="btn-primary h-11 sm:h-9 px-4 text-sm sm:text-xs font-semibold flex items-center justify-center gap-1.5"
-                >
-                  <Plus className="w-3.5 h-3.5" />
-                  <span>Neuen API-Key erzeugen</span>
-                </button>
-              </form>
 
-              {newlyCreatedKey && (
+              <div className="pt-4 border-t border-border">
-                <div className="p-3 bg-accent-dim border border-accent flex flex-col sm:flex-row sm:items-center justify-between gap-2">
+                <ServerBackupsCard />
-                  <div className="min-w-0">
-                    <p className="text-[11px] text-accent font-bold">
-                      Neuer API-Schlüssel erstellt (bitte jetzt kopieren, wird nur einmal im
-                      Klartext angezeigt):
-                    </p>
-                    <code className="text-xs font-mono text-main break-all">{newlyCreatedKey}</code>
-                  </div>
-                  <button
-                    onClick={() => handleCopy(newlyCreatedKey, 'key')}
-                    className="btn-primary h-8 px-3 text-xs flex-shrink-0"
-                  >
-                    {copiedLabel === 'key' ? 'Kopiert!' : 'Key kopieren'}
-                  </button>
-                </div>
-              )}
-
-              {/* Existing Keys List */}
-              <div className="border border-border divide-y divide-border bg-canvas">
-                {apiKeys.length === 0 ? (
-                  <div className="p-4 text-center text-faint">
-                    Noch keine persönlichen API-Schlüssel vorhanden.
-                  </div>
-                ) : (
-                  apiKeys.map((k) => (
-                    <div key={k.id} className="p-3 flex items-center justify-between gap-3">
-                      <div>
-                        <p className="font-semibold text-main">{k.name}</p>
-                        <p className="text-[11px] text-faint font-mono">
-                          Präfix: {k.keyPrefix}•••••••• · Erstellt:{' '}
-                          {new Date(k.createdAt).toLocaleDateString()}
-                        </p>
-                      </div>
-                      <button
-                        onClick={() => handleDeleteAPIKey(k.id)}
-                        className="btn-icon btn-icon-danger"
-                        title="Schlüssel widerrufen"
-                      >
-                        <Trash2 className="w-3.5 h-3.5" />
-                      </button>
-                    </div>
-                  ))
-                )}
-              </div>
-
-              {/* Curl Examples */}
-              <div className="space-y-4">
-                <div className="space-y-1.5">
-                  <div className="flex items-center justify-between">
-                    <span className="font-semibold text-muted flex items-center gap-1.5">
-                      <Terminal className="w-3.5 h-3.5 text-accent" />
-                      <span>Curl: In Triage-Deck einspeisen (erhält Webhook-Badge)</span>
-                    </span>
-                    <button
-                      onClick={() => handleCopy(curlTriageExample, 'curl-triage')}
-                      className="btn-action h-7 px-2.5 text-[11px]"
-                    >
-                      {copiedLabel === 'curl-triage' ? 'Kopiert!' : 'Befehl kopieren'}
-                    </button>
-                  </div>
-                  <pre className="p-3 code-block text-[11px] font-mono overflow-x-auto whitespace-pre">
-                    {curlTriageExample}
-                  </pre>
-                </div>
-
-                <div className="space-y-1.5">
-                  <div className="flex items-center justify-between">
-                    <span className="font-semibold text-muted flex items-center gap-1.5">
-                      <Terminal className="w-3.5 h-3.5 text-accent" />
-                      <span>Curl: Direkt als Aufgabe anlegen</span>
-                    </span>
-                    <button
-                      onClick={() => handleCopy(curlTaskExample, 'curl-task')}
-                      className="btn-action h-7 px-2.5 text-[11px]"
-                    >
-                      {copiedLabel === 'curl-task' ? 'Kopiert!' : 'Befehl kopieren'}
-                    </button>
-                  </div>
-                  <pre className="p-3 code-block text-[11px] font-mono overflow-x-auto whitespace-pre">
-                    {curlTaskExample}
-                  </pre>
-                </div>
               </div>
 
               {/* Full Data Backup */}

frontend/src/features/settings/__tests__/ApiKeysPanel.test.tsx

@@ -0,0 +1,41 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { render, screen, fireEvent, act } from '@testing-library/react';
+
+const createAPIKey = vi.fn(async () => ({ id: 'k1', userId: 'u', name: 'HA', keyPrefix: 'mindsift_sec_ab', scopes: 'webhook:triage,webhook:list', createdAt: '' }));
+vi.mock('../../../lib/api', () => ({
+  api: {
+    getAPIKeys: vi.fn(async () => [
+      { id: 'k0', userId: 'u', name: 'Rauchmelder', keyPrefix: 'mindsift_sec_xy', scopes: 'webhook:triage,webhook:task', createdAt: '' },
+    ]),
+    getAllLists: vi.fn(async () => []),
+    getTaskLists: vi.fn(async () => []),
+    createAPIKey: (...args: unknown[]) => createAPIKey(...(args as [])),
+    deleteAPIKey: vi.fn(),
+    testWebhookIngest: vi.fn(),
+  },
+  triggerHaptic: vi.fn(),
+}));
+
+import { ApiKeysPanel } from '../ApiKeysPanel';
+
+describe('ApiKeysPanel', () => {
+  beforeEach(() => createAPIKey.mockClear());
+
+  it('shows the scopes of existing keys as badges', async () => {
+    render(<ApiKeysPanel />);
+    expect(await screen.findByText('Rauchmelder')).toBeTruthy();
+    expect(screen.getAllByText('📋 Aufgaben').length).toBeGreaterThan(1); // chip + badge
+  });
+
+  it('creates a key with the chosen scopes and never without one', async () => {
+    render(<ApiKeysPanel />);
+    const triage = screen.getByRole('checkbox', { name: /Triage/ });
+    fireEvent.click(triage); // last remaining scope cannot be switched off
+    expect(triage.getAttribute('aria-checked')).toBe('true');
+    fireEvent.click(screen.getByRole('checkbox', { name: /Listeneinträge/ }));
+    await act(async () => {
+      fireEvent.click(screen.getByRole('button', { name: /API-Key erzeugen/ }));
+    });
+    expect(createAPIKey).toHaveBeenCalledWith('Home Assistant', ['webhook:triage', 'webhook:list']);
+  });
+});

frontend/src/features/triage/ManageColumnsModal.tsx

@@ -8,7 +8,6 @@ import {
   RotateCcw,
   Check,
   Columns,
-  Layers,
 } from 'lucide-react';
 import { KanbanColumn } from '../../lib/types';
 import { triggerHaptic } from '../../lib/api';
@@ -28,15 +27,17 @@ export const DEFAULT_KANBAN_COLUMNS: KanbanColumn[] = [
   { id: 'done', name: 'Erledigt', isDone: true, color: 'emerald' },
 ];
 
-export const ManageColumnsModal: React.FC<ManageColumnsModalProps> = ({
+// Wrapper and content split so the hooks always run in the same number (see TaskDetailModal)
+export const ManageColumnsModal: React.FC<ManageColumnsModalProps> = (props) =>
+  props.isOpen ? <ManageColumnsModalContent {...props} /> : null;
+
+const ManageColumnsModalContent: React.FC<ManageColumnsModalProps> = ({
   isOpen,
   onClose,
   initialColumns,
   onSave,
   listTitle,
 }) => {
-  if (!isOpen) return null;
-
   const [columns, setColumns] = useState<KanbanColumn[]>(() => {
     return initialColumns && initialColumns.length > 0 ? initialColumns : DEFAULT_KANBAN_COLUMNS;
   });

frontend/src/features/triage/TaskDetailModal.tsx

@@ -7,19 +7,16 @@ import {
   FileText,
   Plus,
   CheckSquare,
-  Clock,
-  Layers,
   Hash,
   AlertTriangle,
   Flame,
-  ChevronRight,
   Folder,
   Webhook,
   Lock,
   UserPlus,
   Repeat,
 } from 'lucide-react';
-import { Thought, SubTask, TaskList, TaskListMember, KanbanColumn, User, Recurrence } from '../../lib/types';
+import { Thought, TaskList, TaskListMember, KanbanColumn, User, Recurrence } from '../../lib/types';
 import { UserAvatar } from '../../components/UserAvatar';
 import { UserAutocomplete } from '../UserAutocomplete';
 import { triggerHaptic } from '../../lib/api';
@@ -51,9 +48,13 @@ interface TaskDetailModalProps {
   readOnly?: boolean; // Task belongs to a list shared with "viewer" permission
 }
 
-export const TaskDetailModal: React.FC<TaskDetailModalProps> = ({
+// The wrapper decides whether the dialog is shown; the content holds all hooks, so their number never
+// changes between renders (hooks after an early return break React when isOpen flips)
+export const TaskDetailModal: React.FC<TaskDetailModalProps> = (props) =>
+  props.isOpen && props.task ? <TaskDetailModalContent {...props} task={props.task} /> : null;
+
+const TaskDetailModalContent: React.FC<TaskDetailModalProps & { task: Thought }> = ({
   task,
-  isOpen,
   onClose,
   activeColumns,
   taskLists,
@@ -75,8 +76,6 @@ export const TaskDetailModal: React.FC<TaskDetailModalProps> = ({
   onDeleteTask,
   readOnly = false,
 }) => {
-  if (!isOpen || !task) return null;
-
   const [titleDraft, setTitleDraft] = useState(task.content);
   const [isEditingTitle, setIsEditingTitle] = useState(false);
 
@@ -144,7 +143,7 @@ export const TaskDetailModal: React.FC<TaskDetailModalProps> = ({
 
   const handleAddTagSubmit = async (e: React.FormEvent) => {
     e.preventDefault();
-    let cleaned = newTagDraft.trim().replace(/^#+/, '').toLowerCase();
+    const cleaned = newTagDraft.trim().replace(/^#+/, '').toLowerCase();
     if (!cleaned) return;
     const currentTags = Array.isArray(task.tags) ? [...task.tags] : [];
     if (!currentTags.includes(cleaned)) {
@@ -177,11 +176,6 @@ export const TaskDetailModal: React.FC<TaskDetailModalProps> = ({
     onUpdateDueDate(task, joinDue(addDays(daysOffset), splitDue(task.dueDate).time));
   };
 
-  const currentColumn = activeColumns.find((c) => c.id === task.kanbanStatus) ||
-    (task.isCompleted
-      ? activeColumns.find((c) => c.isDone) || activeColumns[activeColumns.length - 1]
-      : activeColumns.find((c) => !c.isDone) || activeColumns[0]);
-
   const subtasks = Array.isArray(task.subtasks) ? task.subtasks : [];
   const completedSubtasks = subtasks.filter((s) => s.isCompleted).length;
   const subtasksPercent = subtasks.length > 0 ? Math.round((completedSubtasks / subtasks.length) * 100) : 0;

frontend/src/features/triage/TasksView.tsx

@@ -15,19 +15,18 @@ import {
   Layers,
   Users,
   CheckSquare,
-  User as UserIcon,
+  User as 
   Lock,
   Hash,
   AlertTriangle,
   Flame,
   Settings,
-  ChevronDown,
   Folder,
   Filter,
   Webhook,
   Repeat,
 } from 'lucide-react';
-import { TaskList, Thought, SubTask, Team, User, TaskListShare, TaskListMember, KanbanColumn, PriorityLevel, Recurrence, RECURRENCE_LABELS } from '../../lib/types';
+import { TaskList, Thought, SubTask, Team, User, TaskListMember, KanbanColumn, PriorityLevel, Recurrence, RECURRENCE_LABELS } from '../../lib/types';
 import { formatDue, isDueToday, isOverdue, localDay, splitDue } from '../../lib/due';
 import { api, triggerHaptic } from '../../lib/api';
 import { UnifiedShareModal } from '../../components/UnifiedShareModal';
@@ -92,10 +91,6 @@ export const TasksView: React.FC<TasksViewProps> = ({
   // Share TaskList modal state
   const [showShareListModal, setShowShareListModal] = useState(false);
   const [sharingTaskList, setSharingTaskList] = useState<TaskList | null>(null);
-  const [addShareType, setAddShareType] = useState<'team' | 'user'>('team');
-  const [selectedShareTargetId, setSelectedShareTargetId] = useState('');
-  const [selectedShareUser, setSelectedShareUser] = useState<User | null>(null);
-  const [shareLoading, setShareLoading] = useState(false);
 
   // Detail modal state
   const [detailTaskId, setDetailTaskId] = useState<string | null>(null);
@@ -854,8 +849,6 @@ export const TasksView: React.FC<TasksViewProps> = ({
 
   const handleOpenShareModal = async (tl: TaskList) => {
     setSharingTaskList(tl);
-    setSelectedShareTargetId('');
-    setSelectedShareUser(null);
     setShowShareListModal(true);
     try {
       const [freshTeams, freshUsers, freshShares] = await Promise.all([
@@ -871,60 +864,6 @@ export const TasksView: React.FC<TasksViewProps> = ({
     }
   };
 
-  const handleAddShare = async () => {
-    if (!sharingTaskList) return;
-    const targetId = addShareType === 'team' ? selectedShareTargetId : selectedShareUser?.id;
-    if (!targetId) return;
-    setShareLoading(true);
-    triggerHaptic(15);
-    try {
-      await api.addTaskListShare(sharingTaskList.id, {
-        targetType: addShareType,
-        targetId: targetId,
-      });
-      const [freshLists, freshShares] = await Promise.all([
-        api.getTaskLists(),
-        api.getTaskListShares(sharingTaskList.id).catch(() => []),
-      ]);
-      setTaskLists(freshLists);
-      const updated = freshLists.find((l) => l.id === sharingTaskList.id);
-      if (updated) {
-        setSharingTaskList({ ...updated, shares: freshShares });
-      }
-      setSelectedShareTargetId('');
-      setSelectedShareUser(null);
-      await loadData();
-    } catch (err: any) {
-      alert(err.message || 'Fehler beim Hinzufügen der Freigabe');
-    } finally {
-      setShareLoading(false);
-    }
-  };
-
-  const handleRemoveShare = async (shareId: string) => {
-    if (!sharingTaskList) return;
-    if (!window.confirm('Freigabe wirklich aufheben?')) return;
-    setShareLoading(true);
-    triggerHaptic(15);
-    try {
-      await api.removeTaskListShare(sharingTaskList.id, shareId);
-      const [freshLists, freshShares] = await Promise.all([
-        api.getTaskLists(),
-        api.getTaskListShares(sharingTaskList.id).catch(() => []),
-      ]);
-      setTaskLists(freshLists);
-      const updated = freshLists.find((l) => l.id === sharingTaskList.id);
-      if (updated) {
-        setSharingTaskList({ ...updated, shares: freshShares });
-      }
-      await loadData();
-    } catch (err: any) {
-      alert(err.message || 'Fehler beim Entfernen der Freigabe');
-    } finally {
-      setShareLoading(false);
-    }
-  };
-
   const handleSaveColumns = async (newColumns: KanbanColumn[]) => {
     triggerHaptic(15);
     if (currentSelectedList && selectedListId !== 'all') {
@@ -1405,9 +1344,9 @@ export const TasksView: React.FC<TasksViewProps> = ({
             }`}
           >
             {/* Counter on the label, like in the nav bar */}
-            <span className={`relative inline-flex items-center ${openTasksCount ? 'pr-2' : ''}`}>
+            <span className={`relative inline-flex items-center ${openTasksCount ? 'pr-3' : ''}`}>
               Alle Aufgaben
-              <CountBadge count={openTasksCount} position="corner" className="-top-1.5 -right-1" />
+              <CountBadge count={openTasksCount} position="corner" className="-top-0.5 -right-2" />
             </span>
           </button>
 
@@ -1423,9 +1362,9 @@ export const TasksView: React.FC<TasksViewProps> = ({
                 className="h-full px-3 text-xs font-medium flex items-center gap-1.5 rounded-btn"
               >
                 <span>{tl.icon}</span>
-                <span className={`relative inline-flex items-center ${tl.tasksCount ? 'pr-2' : ''}`}>
+                <span className={`relative inline-flex items-center ${tl.tasksCount ? 'pr-3' : ''}`}>
                   {tl.title}
-                  <CountBadge count={tl.tasksCount} position="corner" className="-top-1.5 -right-1" />
+                  <CountBadge count={tl.tasksCount} position="corner" className="-top-0.5 -right-2" />
                 </span>
 
                 {(() => {

frontend/src/features/triage/__tests__/TaskDetailModal.test.tsx

@@ -0,0 +1,70 @@
+import { describe, it, expect, vi } from 'vitest';
+import { render, screen, fireEvent } from '@testing-library/react';
+import { TaskDetailModal } from '../TaskDetailModal';
+import { Thought } from '../../../lib/types';
+
+const task: Thought = {
+  id: 'th_1',
+  userId: 'usr_1',
+  content: 'Fenster putzen',
+  tags: [],
+  priority: 'normal',
+  source: 'manual',
+  status: 'converted',
+  isCompleted: false,
+  kanbanStatus: 'todo',
+  dueDate: '2026-10-30T14:30',
+  createdAt: '2026-10-29T08:00:00Z',
+};
+const columns = [
+  { id: 'todo', name: 'Zu erledigen' },
+  { id: 'done', name: 'Erledigt', isDone: true },
+];
+const noop = vi.fn(async () => {});
+
+const props = (over: Partial<React.ComponentProps<typeof TaskDetailModal>> = {}) => ({
+  task,
+  isOpen: true,
+  onClose: vi.fn(),
+  activeColumns: columns,
+  taskLists: [],
+  onUpdateTitle: noop,
+  onUpdateStatus: noop,
+  onUpdatePriority: noop,
+  onUpdateDueDate: vi.fn(async () => {}),
+  onUpdateTaskList: noop,
+  onUpdateNotes: noop,
+  onToggleSubtask: noop,
+  onAddSubtask: noop,
+  onDeleteSubtask: noop,
+  onConvertToDoc: vi.fn(),
+  onDeleteTask: vi.fn(),
+  ...over,
+});
+
+describe('TaskDetailModal', () => {
+  it('opens and closes without breaking the hook order', () => {
+    const { rerender, container } = render(<TaskDetailModal {...props({ isOpen: false })} />);
+    expect(container.firstChild).toBeNull();
+    rerender(<TaskDetailModal {...props()} />);
+    expect(screen.getByText('Aufgabe bearbeiten')).toBeTruthy();
+    rerender(<TaskDetailModal {...props({ isOpen: false })} />);
+    rerender(<TaskDetailModal {...props()} />);
+    expect(screen.getByText('Aufgabe bearbeiten')).toBeTruthy();
+  });
+
+  it('shows date and time separately and removes only the time', () => {
+    const onUpdateDueDate = vi.fn(async () => {});
+    render(<TaskDetailModal {...props({ onUpdateDueDate })} />);
+    expect((screen.getByLabelText('Fälligkeitsdatum') as HTMLInputElement).value).toBe('2026-10-30');
+    expect((screen.getByLabelText('Uhrzeit (optional)') as HTMLInputElement).value).toBe('14:30');
+    fireEvent.click(screen.getByTitle(/Uhrzeit entfernen/));
+    expect(onUpdateDueDate).toHaveBeenCalledWith(task, '2026-10-30');
+  });
+
+  it('is view-only for tasks in lists shared with viewer rights', () => {
+    render(<TaskDetailModal {...props({ readOnly: true })} />);
+    expect(screen.getByText('Aufgabe ansehen')).toBeTruthy();
+    expect((screen.getByLabelText('Fälligkeitsdatum') as HTMLInputElement).closest('fieldset')?.disabled).toBe(true);
+  });
+});

frontend/src/features/workspace/CodeBlockItem.tsx

@@ -1,4 +1,4 @@
-import React, { useState, useMemo, useRef, useEffect } from 'react';
+import React, { useState, useMemo, useRef } from 'react';
 import Prism from 'prismjs';
 import 'prismjs/components/prism-python';
 import 'prismjs/components/prism-typescript';

frontend/src/features/workspace/DocumentEditor.tsx

@@ -14,7 +14,6 @@ import {
   Minimize2,
   Sparkles,
   Plus,
-  Search,
   Check,
   CloudOff,
   AlertTriangle,

frontend/src/features/workspace/OutlinerBlock.tsx

@@ -97,7 +97,6 @@ export const OutlinerBlock: React.FC<OutlinerBlockProps> = ({
   block,
   index,
   isLast,
-  maxAllowedLevel,
   hasChildren,
   isFocused,
   canEdit,

frontend/src/features/workspace/OutlinerTree.tsx

@@ -402,7 +402,7 @@ export const OutlinerTree = forwardRef<OutlinerTreeHandle, OutlinerTreeProps>(({
 
         // Explicit bullet or numbered list: - item, * item, • item, 1. item, 1) item
         const bulletMatch = strippedLine.match(/^[-*•]\s+(.*)$/);
-        const numMatch = strippedLine.match(/^\d+[\.\)]\s+(.*)$/);
+        const numMatch = strippedLine.match(/^\d+[.)]\s+(.*)$/);
         if (bulletMatch || numMatch) {
           pushCurrentItem();
           afterHeading = false;

frontend/src/features/workspace/WorkspaceView.tsx

@@ -18,15 +18,11 @@ import {
   ExternalLink,
   Sparkles,
   ArrowLeft,
-  CheckSquare,
   PanelLeftClose,
   PanelLeftOpen,
-  ChevronLeft,
-  Radio,
   Clock,
   AlertTriangle,
   Loader2,
-  Lock,
 } from 'lucide-react';
 import {
   Document,
@@ -44,10 +40,6 @@ import {
   api,
   onWebSocketMessage,
   triggerHaptic,
-  onRealtimeStatus,
-  isRealtimeConnected,
-  getRealtimeTransport,
-  RealtimeTransport,
 } from '../../lib/api';
 import { UnifiedShareModal } from '../../components/UnifiedShareModal';
 import { FormSheet } from '../../components/FormSheet';
@@ -64,6 +56,8 @@ interface WorkspaceViewProps {
   initialBlockId?: string | null;
   onStatsChange: () => void;
   onOpenTask?: (taskId: string) => void;
+  // Opens the global search (command palette); the notes sidebar has no search of its own
+  onOpenSearch?: () => void;
 }
 
 type WorkspaceSubView = 'editor' | 'tag_detail' | 'todos' | 'tags' | 'trash';
@@ -282,6 +276,7 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
   initialBlockId,
   onStatsChange,
   onOpenTask,
+  onOpenSearch,
 }) => {
   const [docs, setDocs] = useState<Document[]>([]);
   const [folders, setFolders] = useState<string[]>([]);
@@ -325,7 +320,6 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
   const [tagSearchQuery, setTagSearchQuery] = useState<string>('');
   const [tagSortBy, setTagSortBy] = useState<'count' | 'name'>('count');
 
-  const [searchQuery, setSearchQuery] = useState<string>('');
   const [expandedFolders, setExpandedFolders] = useState<Record<string, boolean>>(() => {
     try {
       const saved = localStorage.getItem('mindsift:workspace_expanded_folders');
@@ -345,7 +339,6 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
   const [newFolderCoords, setNewFolderCoords] = useState<{ x: number; y: number } | null>(null);
   const [newFolderParentPath, setNewFolderParentPath] = useState<string>('');
   const [newFolderName, setNewFolderName] = useState<string>('');
-  const [newFolderIsShared, setNewFolderIsShared] = useState<boolean>(false);
 
   const handleOpenNewFolder = (parentPath = '', e?: React.MouseEvent) => {
     setNewFolderParentPath(parentPath);
@@ -379,19 +372,9 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
     });
   }, []);
 
-  // Realtime connection status for top header indicator (identical to SharedListsView)
-  const [realtimeConnected, setRealtimeConnected] = useState<boolean>(() => isRealtimeConnected());
-  const [realtimeTransport, setRealtimeTransport] = useState<RealtimeTransport>(() => getRealtimeTransport());
   const [docSaveStatus, setDocSaveStatus] = useState<DocSaveStatus>('saved');
   const [docSaveError, setDocSaveError] = useState<string | null>(null);
 
-  useEffect(() => {
-    const unsub = onRealtimeStatus((connected, transport) => {
-      setRealtimeConnected(connected);
-      setRealtimeTransport(transport);
-    });
-    return unsub;
-  }, []);
 
   // Drag and Drop state
   const [draggingDocId, setDraggingDocId] = useState<string | null>(null);
@@ -868,17 +851,6 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
     return Array.from(set).sort();
   }, [docs, folders, sharedFolders]);
 
-  const filteredDocs = useMemo(() => {
-    const q = searchQuery.trim().toLowerCase();
-    if (!q) return docs;
-    return docs.filter(
-      (d) =>
-        d.title.toLowerCase().includes(q) ||
-        (d.content && d.content.toLowerCase().includes(q)) ||
-        (d.tags && d.tags.some((t) => t.toLowerCase().includes(q)))
-    );
-  }, [docs, searchQuery]);
-
   const folderTree = useMemo(() => {
     const rootNodes: FolderTreeNode[] = [];
     const nodeMap = new Map<string, FolderTreeNode>();
@@ -906,7 +878,7 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
       const sharedFolderObj = sharedFolders.find(
         (sf) => sf.mountPath === p || sf.name === p
       );
-      const folderDocs = filteredDocs.filter((d) => d.folderPath === p);
+      const folderDocs = docs.filter((d) => d.folderPath === p);
 
       const node: FolderTreeNode = {
         name: leafName,
@@ -931,16 +903,16 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
     }
 
     return rootNodes;
-  }, [allFolderPaths, filteredDocs, sharedFolders]);
+  }, [allFolderPaths, docs, sharedFolders]);
 
   const pinnedDocs = useMemo(
-    () => filteredDocs.filter((d) => d.isPinned),
+    () => docs.filter((d) => d.isPinned),
-    [filteredDocs]
+    [docs]
   );
 
   const rootDocs = useMemo(
-    () => filteredDocs.filter((d) => !d.folderPath),
+    () => docs.filter((d) => !d.folderPath),
-    [filteredDocs]
+    [docs]
   );
 
   // Global To-Dos rollup collections
@@ -969,22 +941,6 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
     return map;
   }, [allRollupTodos]);
 
-  const rollupTodosByNote = useMemo(() => {
-    const map = new Map<
-      string,
-      { doc: Document; items: { doc: Document; blockId: string; content: string; checked: boolean }[] }
-    >();
-    for (const item of allRollupTodos) {
-      const existing = map.get(item.doc.id);
-      if (existing) {
-        existing.items.push(item);
-      } else {
-        map.set(item.doc.id, { doc: item.doc, items: [item] });
-      }
-    }
-    return map;
-  }, [allRollupTodos]);
-
   const totalOpenTodos = useMemo(() => {
     let count = 0;
     for (const d of docs) {
@@ -1223,7 +1179,6 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
           >
             <FileText className="w-3.5 h-3.5 text-accent" />
             <span>Notizen</span>
-            {docs.length > 0 && <span className="ml-1 badge-neutral text-[10px]">{docs.length}</span>}
           </button>
 
           <button
@@ -1239,8 +1194,10 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
             }`}
           >
             <Check className="w-3.5 h-3.5 text-status-ok" />
-            <span>To-Dos</span>
+            <span className={`relative inline-flex items-center ${totalOpenTodos > 0 ? 'pr-3' : ''}`}>
-            {totalOpenTodos > 0 && <span className="ml-1 badge-neutral text-[10px]">{totalOpenTodos}</span>}
+              To-Dos
+              <CountBadge count={totalOpenTodos} position="corner" className="-top-0.5 -right-2" />
+            </span>
           </button>
 
           <button
@@ -1256,8 +1213,10 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
             }`}
           >
             <Hash className="w-3.5 h-3.5 text-accent" />
-            <span>Hashtags</span>
+            <span className={`relative inline-flex items-center ${tagsSummary.length > 0 ? 'pr-3' : ''}`}>
-            {tagsSummary.length > 0 && <span className="ml-1 badge-neutral text-[10px]">{tagsSummary.length}</span>}
+              Hashtags
+              <CountBadge count={tagsSummary.length} position="corner" className="-top-0.5 -right-2" />
+            </span>
           </button>
         </div>
 
@@ -1354,32 +1313,25 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
               </div>
             </div>
 
-            {/* Search Input */}
+            {/* Opens the global full-text search, which also finds the content of every bullet */}
-            <div className="relative">
+            {onOpenSearch && (
-              <Search className="w-3.5 h-3.5 text-faint absolute left-2.5 top-1/2 -translate-y-1/2" />
-              <input
-                type="text"
-                value={searchQuery}
-                onChange={(e) => setSearchQuery(e.target.value)}
-                placeholder="Notizen oder #Tags suchen…"
-                className="input-field w-full pl-8 pr-6 py-1 text-xs"
-              />
-              {searchQuery && (
               <button
                 type="button"
-                  onClick={() => setSearchQuery('')}
+                onClick={onOpenSearch}
-                  className="absolute right-2 top-1/2 -translate-y-1/2 text-faint hover:text-main"
+                className="input-field w-full h-11 sm:h-7 px-2.5 flex items-center gap-2 text-xs text-faint hover:text-main cursor-pointer"
+                title="Globale Suche (Strg+K / ⌘K oder /)"
               >
-                  <X className="w-3.5 h-3.5" />
+                <Search className="w-3.5 h-3.5 shrink-0" />
+                <span className="flex-1 text-left truncate">Notizen durchsuchen…</span>
+                <span className="hidden sm:inline font-mono text-[10px]">⌘K</span>
               </button>
             )}
           </div>
-          </div>
 
         {/* Scrollable Navigation Tree */}
         <div className="flex-1 overflow-y-auto p-2 space-y-3">
           {/* Pinned Notes */}
-          {pinnedDocs.length > 0 && !searchQuery && (
+          {pinnedDocs.length > 0 && (
             <div>
               <div className="px-2 mb-1 flex items-center gap-1 text-[10px] font-bold uppercase tracking-wider text-faint">
                 <Pin className="w-3 h-3 text-status-warn" />

frontend/src/features/workspace/__tests__/TrashView.test.tsx

@@ -0,0 +1,30 @@
+import { describe, it, expect, vi } from 'vitest';
+import { render, screen, fireEvent, act } from '@testing-library/react';
+import { TrashView } from '../TrashView';
+
+const items = [
+  { id: 'doc_1', title: 'Urlaub', icon: '🏔️', folderPath: 'Privat', deletedAt: '2026-10-29T08:00:00Z', isOwner: true },
+];
+
+describe('TrashView', () => {
+  it('deletes for good only on the second tap', async () => {
+    const onPurge = vi.fn(async () => {});
+    render(<TrashView items={items} onOpen={vi.fn()} onRestore={vi.fn(async () => {})} onPurge={onPurge} onEmpty={vi.fn(async () => {})} onBackMobile={vi.fn()} />);
+    fireEvent.click(screen.getByText('Endgültig löschen'));
+    expect(onPurge).not.toHaveBeenCalled();
+    await act(async () => {
+      fireEvent.click(screen.getByText('Wirklich löschen?'));
+    });
+    expect(onPurge).toHaveBeenCalledWith('doc_1');
+  });
+
+  it('restores with one tap and shows the original folder', async () => {
+    const onRestore = vi.fn(async () => {});
+    render(<TrashView items={items} onOpen={vi.fn()} onRestore={onRestore} onPurge={vi.fn(async () => {})} onEmpty={vi.fn(async () => {})} onBackMobile={vi.fn()} />);
+    expect(screen.getByText('Privat')).toBeTruthy();
+    await act(async () => {
+      fireEvent.click(screen.getByText('Wiederherstellen'));
+    });
+    expect(onRestore).toHaveBeenCalledWith('doc_1');
+  });
+});

frontend/src/index.css

@@ -80,6 +80,12 @@ body {
     border-radius: var(--radius-card);
   }
 
+  /* An explicit rounded-full (round icon buttons, avatars) wins over the theme radius above */
+  .bg-panel.border.rounded-full,
+  .bg-canvas.border.rounded-full {
+    border-radius: 9999px;
+  }
+
   /* Quick-Capture-Blase im Header (immer vollständig abgerundet) */
   .capture-pill,
   .capture-pill.bg-panel.border {

frontend/src/lib/__tests__/password.test.ts

@@ -0,0 +1,11 @@
+import { describe, it, expect } from 'vitest';
+import { passwordProblem } from '../password';
+
+describe('passwordProblem (same rule as the server)', () => {
+  it('needs 8 characters, counted as characters', () => {
+    expect(passwordProblem('kurz')).toMatch(/mindestens 8 Zeichen/);
+    expect(passwordProblem('        ')).toMatch(/mindestens 8 Zeichen/);
+    expect(passwordProblem('geheim12')).toBeNull();
+    expect(passwordProblem('äöüßäöüß')).toBeNull();
+  });
+});

frontend/src/lib/__tests__/realtime.test.ts

@@ -62,7 +62,7 @@ describe('realtime fallback', () => {
     vi.stubGlobal('EventSource', FakeEventSource);
     sessionStorage.clear();
     localStorage.setItem('mindsift_jwt_token', 'test-token');
-    vi.stubGlobal('fetch', vi.fn(async () => new Response('{}', { status: 200 })));
+    vi.stubGlobal('fetch', vi.fn(async () => new Response('{"ticket":"t1"}', { status: 200 })));
   });
   afterEach(() => {
     vi.useRealTimers();
@@ -73,7 +73,7 @@ describe('realtime fallback', () => {
     const api = await loadApi();
     const states: string[] = [];
     api.onRealtimeStatus((connected, transport) => states.push(`${connected}:${transport}`));
-    api.connectWebSocket();
+    await api.connectWebSocket();
     FakeWebSocket.instances[0].open();
     expect(api.getRealtimeTransport()).toBe('ws');
 
@@ -87,9 +87,17 @@ describe('realtime fallback', () => {
     api.disconnectWebSocket();
   });
 
+  it('connects with a one-time ticket, never with the session token in the URL', async () => {
+    const api = await loadApi();
+    await api.connectWebSocket();
+    expect(FakeWebSocket.instances[0].url).toContain('ticket=t1');
+    expect(FakeWebSocket.instances[0].url).not.toContain('test-token');
+    api.disconnectWebSocket();
+  });
+
   it('a WebSocket answering PONG stays in use', async () => {
     const api = await loadApi();
-    api.connectWebSocket();
+    await api.connectWebSocket();
     const ws = FakeWebSocket.instances[0];
     ws.open();
     for (let i = 0; i < 6; i++) {
@@ -104,7 +112,7 @@ describe('realtime fallback', () => {
   it('SSE only counts as connected once the first event arrives', async () => {
     sessionStorage.setItem('mindsift_ws_blocked', 'true');
     const api = await loadApi();
-    api.connectWebSocket();
+    await api.connectWebSocket();
     const es = FakeEventSource.instances[0];
     es.open();
     expect(api.isRealtimeConnected()).toBe(false);
@@ -118,7 +126,7 @@ describe('realtime fallback', () => {
   it('a buffering proxy (stream opens, no events) switches SSE off for this tab', async () => {
     sessionStorage.setItem('mindsift_ws_blocked', 'true');
     const api = await loadApi();
-    api.connectWebSocket();
+    await api.connectWebSocket();
     const es = FakeEventSource.instances[0];
     es.open();
     await vi.advanceTimersByTimeAsync(5_500);

frontend/src/lib/__tests__/theme.test.ts

@@ -53,7 +53,7 @@ describe('custom themes', () => {
     expect(opt.isRounded).toBe(true);
   });
 
-  it('supports polarized and suri built-in purple dark themes', () => {
+  it('supports polarized and suri built-in dark themes', () => {
     setActiveTheme('polarized');
     expect(getActiveTheme()).toBe('polarized');
     expect(document.documentElement.getAttribute('data-theme')).toBe('polarized');

frontend/src/lib/api.ts

@@ -4,6 +4,9 @@ import {
   DashboardStats,
   Document,
   TrashedDocument,
+  BackupFile,
+  DataSection,
+  ApiKeyScope,
   Backlink,
   DocumentBlock,
   DocShare,
@@ -16,7 +19,6 @@ import {
   SharedFolder,
   FolderShare,
   Space,
-  SpaceMember,
   SpaceShare,
   SystemSettings,
   SharingMode,
@@ -1108,10 +1110,10 @@ export const api = {
     return ensureArray(res);
   },
 
-  async createAPIKey(name: string): Promise<APIKey> {
+  async createAPIKey(name: string, scopes: ApiKeyScope[]): Promise<APIKey> {
     return request<APIKey>('/api/v1/keys', {
       method: 'POST',
-      body: JSON.stringify({ name }),
+      body: JSON.stringify({ name, scopes }),
     });
   },
 
@@ -1119,19 +1121,23 @@ export const api = {
     await request(`/api/v1/keys/${id}`, { method: 'DELETE' });
   },
 
+  /** Simulator: sends like an external system would, with the given key or else the own session. */
   async testWebhookIngest(
-    token: string,
+    apiKey: string | null,
-    title: string,
+    payload: {
-    priority: PriorityLevel,
+      title: string;
-    tags: string[]
+      priority?: PriorityLevel;
-  ): Promise<{ status: string; thought: Thought }> {
+      tags?: string[];
-    return request<{ status: string; thought: Thought }>(
+      target?: 'triage' | 'task' | 'list_item';
-      `/api/v1/webhooks/ingest?token=${encodeURIComponent(token)}`,
+      taskListId?: string;
-      {
+      listId?: string;
-        method: 'POST',
-        body: JSON.stringify({ title, priority, tags }),
     }
-    );
+  ): Promise<{ status: string }> {
+    return request<{ status: string }>('/api/v1/webhooks/ingest', {
+      method: 'POST',
+      headers: apiKey ? { 'X-API-Key': apiKey } : {},
+      body: JSON.stringify(payload),
+    });
   },
 
   async searchAll(q: string): Promise<SearchResults> {
@@ -1151,7 +1157,8 @@ export const api = {
     source: 'mindsift' | 'obsidian',
     file: File,
     preview: boolean,
-    mode: 'merge' | 'restore' = 'merge'
+    mode: 'merge' | 'restore' = 'merge',
+    sections?: DataSection[]
   ): Promise<ImportSummary> {
     const token = getToken();
     const form = new FormData();
@@ -1159,6 +1166,7 @@ export const api = {
     const params = new URLSearchParams();
     if (preview) params.set('preview', '1');
     if (mode === 'restore') params.set('mode', 'restore');
+    if (sections && sections.length > 0) params.set('sections', sections.join(','));
     const res = await fetch(`/api/v1/import/${source}${params.toString() ? `?${params}` : ''}`, {
       method: 'POST',
       headers: token ? { Authorization: `Bearer ${token}` } : {},
@@ -1169,6 +1177,33 @@ export const api = {
     return data as ImportSummary;
   },
 
+  // --- Automatic server backups ---
+  async adminListBackups(): Promise<BackupFile[]> {
+    return ensureArray(await request<BackupFile[]>('/api/v1/admin/backups'));
+  },
+
+  async adminRunBackup(): Promise<BackupFile[]> {
+    return ensureArray(await request<BackupFile[]>('/api/v1/admin/backups', { method: 'POST' }));
+  },
+
+  async adminDownloadBackup(name: string): Promise<Blob> {
+    return downloadBlob(`/api/v1/admin/backups/${encodeURIComponent(name)}`);
+  },
+
+  async listMyBackups(): Promise<BackupFile[]> {
+    return ensureArray(await request<BackupFile[]>('/api/v1/backups'));
+  },
+
+  async downloadMyBackup(name: string): Promise<Blob> {
+    return downloadBlob(`/api/v1/backups/${encodeURIComponent(name)}`);
+  },
+
+  async restoreMyBackup(name: string, mode: 'merge' | 'restore', sections: DataSection[], preview = false): Promise<ImportSummary> {
+    const params = new URLSearchParams({ mode, sections: sections.join(',') });
+    if (preview) params.set('preview', '1');
+    return request<ImportSummary>(`/api/v1/backups/${encodeURIComponent(name)}/restore?${params}`, { method: 'POST' });
+  },
+
   // Danger zone: both need the current password
   async purgeOwnData(password: string): Promise<void> {
     await request('/api/v1/user/data', { method: 'DELETE', body: JSON.stringify({ password }) });
@@ -1204,19 +1239,28 @@ let isRealtimeConnectedState = false;
 let manualDisconnect = false;
 let wsReconnectDelay = 2000;
 
-export function buildWebSocketURL(listId?: string): string {
+// WebSocket and EventSource cannot send headers, so instead of the session token (which would land in
-  const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
+// proxy logs) every connection gets a one-time ticket, valid for a minute (POST /auth/stream-ticket).
-  const token = getToken() || '';
+async function fetchStreamTicket(): Promise<string | null> {
-  if (listId) {
+  try {
-    return `${protocol}//${window.location.host}/api/v1/ws/lists/${encodeURIComponent(listId)}?token=${encodeURIComponent(token)}`;
+    const res = await request<{ ticket?: string }>('/api/v1/auth/stream-ticket', { method: 'POST' });
+    return res?.ticket || null;
+  } catch {
+    return null;
   }
-  return `${protocol}//${window.location.host}/api/v1/ws?token=${encodeURIComponent(token)}`;
 }
 
-export function buildSSEURL(listId?: string, docId?: string, rooms?: string[]): string {
+export function buildWebSocketURL(ticket: string, listId?: string): string {
-  const token = getToken() || '';
+  const protocol = window.location.protocol === 'https:' ? 'wss:' : 'ws:';
+  if (listId) {
+    return `${protocol}//${window.location.host}/api/v1/ws/lists/${encodeURIComponent(listId)}?ticket=${encodeURIComponent(ticket)}`;
+  }
+  return `${protocol}//${window.location.host}/api/v1/ws?ticket=${encodeURIComponent(ticket)}`;
+}
+
+export function buildSSEURL(ticket: string, listId?: string, docId?: string, rooms?: string[]): string {
   const params = new URLSearchParams();
-  if (token) params.set('token', token);
+  params.set('ticket', ticket);
   if (listId) params.set('listId', listId);
   if (docId) params.set('docId', docId);
   if (rooms && rooms.length > 0) params.set('rooms', rooms.join(','));
@@ -1304,7 +1348,9 @@ function switchToSSE(reason: string) {
   connectSSE();
 }
 
-export function connectSSE(rooms?: string[]): void {
+let sseTicketPending = false;
+
+export async function connectSSE(rooms?: string[]): Promise<void> {
   if (rooms) {
     rooms.forEach((r) => globalSubscribedRooms.add(r));
   }
@@ -1323,8 +1369,20 @@ export function connectSSE(rooms?: string[]): void {
     activeGlobalSSE = null;
   }
 
+  if (sseTicketPending) return;
+  sseTicketPending = true;
+  const ticket = await fetchStreamTicket();
+  sseTicketPending = false;
+  if (manualDisconnect || !getToken()) return;
+  if (!ticket) {
+    // Server unreachable or session gone: try again later like after a dropped stream
+    notifyRealtimeStatusChange(false, 'none');
+    sseReconnectTimer = setTimeout(() => connectSSE(), sseReconnectDelay);
+    return;
+  }
+
   try {
-    const url = buildSSEURL(undefined, undefined, Array.from(globalSubscribedRooms));
+    const url = buildSSEURL(ticket, undefined, undefined, Array.from(globalSubscribedRooms));
     const es = new EventSource(url);
     activeGlobalSSE = es;
 
@@ -1397,15 +1455,16 @@ export function connectSSE(rooms?: string[]): void {
   }
 }
 
-export function connectWebSocket(): void {
+let wsTicketPending = false;
+
+export async function connectWebSocket(): Promise<void> {
   const token = getToken();
   if (!token) return;
   manualDisconnect = false;
 
   // If proxy blocked WebSocket previously, do not attempt failing WebSocket; stay on SSE
   if (isWsBlockedByProxy) {
-    connectSSE();
+    return connectSSE();
-    return;
   }
 
   if (activeGlobalWS && (activeGlobalWS.readyState === WebSocket.OPEN || activeGlobalWS.readyState === WebSocket.CONNECTING)) {
@@ -1416,8 +1475,22 @@ export function connectWebSocket(): void {
   clearTimeout(wsReconnectTimer);
   clearTimeout(sseReconnectTimer);
 
+  if (wsTicketPending) return;
+  wsTicketPending = true;
+  const ticket = await fetchStreamTicket();
+  wsTicketPending = false;
+  if (manualDisconnect || !getToken()) return;
+  if (activeGlobalWS && (activeGlobalWS.readyState === WebSocket.OPEN || activeGlobalWS.readyState === WebSocket.CONNECTING)) {
+    return;
+  }
+  if (!ticket) {
+    notifyRealtimeStatusChange(false, 'none');
+    wsReconnectTimer = setTimeout(() => connectWebSocket(), wsReconnectDelay);
+    return;
+  }
+
   try {
-    const url = buildWebSocketURL();
+    const url = buildWebSocketURL(ticket);
     const ws = new WebSocket(url);
     activeGlobalWS = ws;
 
@@ -1501,7 +1574,7 @@ export function connectWebSocket(): void {
       }
     };
 
-    ws.onerror = (e) => {
+    ws.onerror = () => {
       clearTimeout(wsConnectionWatchdog);
       switchToSSE('WebSocket Fehler (Handshake/Verbindung verweigert)');
     };

frontend/src/lib/docSync/__tests__/diff.test.ts

@@ -49,7 +49,7 @@ describe('diffFlat', () => {
       return Math.floor((seed / 2147483648) * n);
     };
     let current: DocumentBlock[] = [B('x0', 0)];
-    let d = build(current);
+    const d = build(current);
     for (let step = 0; step < 300; step++) {
       const next = current.map((b) => ({ ...b }));
       const i = rnd(next.length);

frontend/src/lib/download.ts

@@ -0,0 +1,15 @@
+// Saves a downloaded file. Works on mobile browsers too: the link must be in the document and the
+// object URL alive until the click ran.
+export function saveBlob(blob: Blob, filename: string): void {
+  const url = URL.createObjectURL(blob);
+  const a = document.createElement('a');
+  a.href = url;
+  a.download = filename;
+  document.body.appendChild(a);
+  a.click();
+  a.remove();
+  window.setTimeout(() => URL.revokeObjectURL(url), 10000);
+}
+
+export const formatBytes = (n: number): string =>
+  n < 1024 ? `${n} B` : n < 1024 * 1024 ? `${(n / 1024).toFixed(0)} KB` : `${(n / 1024 / 1024).toFixed(1)} MB`;

frontend/src/lib/password.ts

@@ -0,0 +1,8 @@
+// Same rule as the server (auth.ValidatePassword): at least 8 characters, not only spaces.
+// Only for setting a password; logging in with an older, shorter one keeps working.
+export const MIN_PASSWORD_LENGTH = 8;
+
+export const passwordProblem = (password: string): string | null =>
+  !password.trim() || Array.from(password).length < MIN_PASSWORD_LENGTH
+    ? `Das Passwort muss mindestens ${MIN_PASSWORD_LENGTH} Zeichen lang sein`
+    : null;

frontend/src/lib/theme.ts

@@ -70,13 +70,13 @@ export const AVAILABLE_THEMES: ThemeOption[] = [
   },
   {
     id: 'polarized',
-    name: 'Polarized (Ultraviolet)',
+    name: 'Polarized (Emerald / Teal)',
-    subtitle: 'Tiefdunkles Obsidian mit elektrischem Violett (0px)',
+    subtitle: 'Tiefdunkles Obsidian mit elektrischem Türkis/Grün (0px)',
     file: 'src/themes/theme-polarized.css',
-    previewBg: '#0d0b14',
+    previewBg: '#090e11',
-    previewPanel: '#151221',
+    previewPanel: '#10181c',
-    previewAccent: '#a855f7',
+    previewAccent: '#14b8a6',
-    previewText: '#f5f3ff',
+    previewText: '#f0fdfa',
     isRounded: false,
   },
   {

frontend/src/lib/types.ts

@@ -10,6 +10,10 @@ export interface AuthStatus {
   sharingMode?: SharingMode;
   // "Passwort vergessen?" works (SMTP and BASE_URL configured)
   passwordReset?: boolean;
+  // Demo mode with periodic reset: next reset (ISO) and seconds until then
+  demoNextReset?: string;
+  demoResetInSeconds?: number;
+  demoResetMinutes?: number;
   // Impressum / Datenschutz of this instance (LEGAL_* environment variables)
   legal?: {
     imprintUrl?: string;
@@ -182,8 +186,29 @@ export interface SystemSettings {
   smtpSkipVerify?: boolean;
   allowPrivateWebhooks?: boolean; // alarm webhooks may reach the LAN (and plain http)
   smtpConfiguredViaEnv?: boolean;
+  // Automatic backups: daily time (HH:MM, server time zone) and days to keep them
+  backupEnabled?: boolean;
+  backupTime?: string;
+  backupRetentionDays?: number;
 }
 
+/** One file of a server backup listing. */
+export interface BackupFile {
+  name: string;
+  size: number;
+  createdAt: string;
+}
+
+/** Parts of the own data a backup can be restored for. */
+export type DataSection = 'notes' | 'tasks' | 'lists' | 'inbox' | 'themes';
+export const DATA_SECTIONS: { id: DataSection; label: string }[] = [
+  { id: 'notes', label: 'Notizen' },
+  { id: 'tasks', label: 'Aufgaben' },
+  { id: 'lists', label: 'Listen' },
+  { id: 'inbox', label: 'Inbox' },
+  { id: 'themes', label: 'Themes' },
+];
+
 export type BlockType = 'h1' | 'h2' | 'h3' | 'paragraph' | 'text' | 'todo' | 'bullet' | 'code' | 'callout' | 'divider' | 'table' | 'progress';
 
 export interface DocumentBlock {
@@ -460,6 +485,7 @@ export interface ImportSummary {
   lists: number;
   listItems: number;
   inbox: number;
+  themes?: number;
   skipped: { path: string; reason: string }[];
   applied: boolean;
 }
@@ -473,13 +499,16 @@ export interface UserTheme {
   updatedAt: string;
 }
 
+/** What an API key may deliver; keys never read data. */
+export type ApiKeyScope = 'webhook:triage' | 'webhook:task' | 'webhook:list';
+
 export interface APIKey {
   id: string;
   userId: string;
   name: string;
   keyPrefix: string;
   rawKey?: string;
-  scopes: string;
+  scopes: string; // comma separated ApiKeyScope values
   lastUsedAt?: string;
   createdAt: string;
 }
@@ -490,6 +519,7 @@ export interface DashboardStats {
   tasksDoneCount: number;
   docsCount: number;
   docsTodosOpenCount?: number;
+  listItemsOpenCount?: number;
   listsCount: number;
   discardedCount: number;
 }

frontend/src/test/setup.ts

@@ -4,6 +4,19 @@ import { cleanup } from '@testing-library/react';
 // jsdom has no layout engine, so scrolling is a no-op here
 Element.prototype.scrollIntoView = () => {};
 
+if (typeof window !== 'undefined' && !window.PointerEvent) {
+  class PolyfillPointerEvent extends MouseEvent {
+    pointerId: number;
+    pointerType: string;
+    constructor(type: string, params: PointerEventInit = {}) {
+      super(type, params);
+      this.pointerId = params.pointerId ?? 1;
+      this.pointerType = params.pointerType ?? 'touch';
+    }
+  }
+  (window as any).PointerEvent = PolyfillPointerEvent;
+}
+
 afterEach(() => {
   cleanup();
 });

frontend/src/themes/theme-polarized.css

@@ -1,37 +1,37 @@
 /* ==========================================================================
-   MINDSIFT THEME: POLARIZED (Ultraviolet / Obsidian)
+   MINDSIFT THEME: POLARIZED (Emerald / Teal)
-   Tiefdunkles Obsidian mit elektrischem Violett-Akzent & scharfen Kanten.
+   Tiefdunkles Obsidian mit elektrischem Grün/Türkis-Akzent & scharfen Kanten.
    ========================================================================== */
 
 :root[data-theme="polarized"] {
-  /* --- 1. AKZENTFARBE (Elektrisches Ultraviolett) --- */
+  /* --- 1. AKZENTFARBE (Elektrisches Grün / Türkis) --- */
-  --accent-primary: #a855f7;
+  --accent-primary: #14b8a6;
-  --accent-hover: #c084fc;
+  --accent-hover: #2dd4bf;
-  --accent-dim: rgba(168, 85, 247, 0.15);
+  --accent-dim: rgba(20, 184, 166, 0.16);
-  --accent-border: rgba(192, 132, 252, 0.45);
+  --accent-border: rgba(45, 212, 191, 0.45);
-  --text-on-accent: #ffffff;
+  --text-on-accent: #042f2e; /* dunkel: Weiß auf Türkis erreicht nur 2,5:1 */
 
   /* --- 2. OBERFLÄCHEN & HINTERGRÜNDE --- */
-  --bg-app: #0d0b14;
+  --bg-app: #090e11;
-  --bg-panel: #151221;
+  --bg-panel: #10181c;
-  --bg-panel-elevated: #1d182e;
+  --bg-panel-elevated: #162127;
-  --bg-panel-hover: #26203c;
+  --bg-panel-hover: #1e2c34;
-  --bg-input: #0f0d18;
+  --bg-input: #0c1317;
-  --bg-overlay: rgba(6, 4, 10, 0.78);
+  --bg-overlay: rgba(4, 7, 9, 0.78);
-  --bg-code: #08060d;
+  --bg-code: #070b0e;
 
   /* --- 3. TEXT & KONTRASTE --- */
-  --text-main: #f5f3ff;
+  --text-main: #f0fdfa;
-  --text-muted: #a79fc2;
+  --text-muted: #8da6a9;
-  --text-faint: #6d6585;
+  --text-faint: #5a7074;
 
   /* --- 4. RAHMEN, LINIEN & SCHATTEN --- */
-  --border-color: rgba(168, 85, 247, 0.14);
+  --border-color: rgba(20, 184, 166, 0.16);
-  --border-subtle: rgba(168, 85, 247, 0.07);
+  --border-subtle: rgba(20, 184, 166, 0.08);
-  --border-strong: rgba(192, 132, 252, 0.30);
+  --border-strong: rgba(45, 212, 191, 0.32);
-  --shadow-panel: 0 10px 30px rgba(5, 3, 10, 0.55);
+  --shadow-panel: 0 10px 30px rgba(3, 8, 10, 0.55);
-  --scrollbar-thumb: rgba(168, 85, 247, 0.22);
+  --scrollbar-thumb: rgba(20, 184, 166, 0.22);
-  --scrollbar-thumb-hover: rgba(192, 132, 252, 0.40);
+  --scrollbar-thumb-hover: rgba(45, 212, 191, 0.42);
 
   /* --- 5. STATUS- & SIGNALFARBEN --- */
   --color-success: #10b981;

internal/api/alarms.go

@@ -150,7 +150,11 @@ func (s *Server) startAlarmTicker() {
 			}
 
 			if sentAny {
-				_ = s.store.MarkTaskAlarmSent(a.TaskID)
+				if err := s.store.MarkTaskAlarmSent(a.TaskID); err != nil {
+					slog.Error("Alarm als gesendet markieren fehlgeschlagen (wird erneut gesendet)", "task_id", a.TaskID, "error", err)
+				}
+			} else if gaveUp, _ := s.store.RecordTaskAlarmFailure(a.TaskID); gaveUp {
+				slog.Warn("Aufgaben-Alarm nach 3 Fehlversuchen aufgegeben", "task_id", a.TaskID, "title", a.Title)
 			}
 		}
 	}

internal/api/backups.go

@@ -0,0 +1,168 @@
+package api
+
+import (
+	"fmt"
+	"log/slog"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/go-chi/chi/v5"
+	"github.com/sandrodach/mindsift/internal/auth"
+	"github.com/sandrodach/mindsift/internal/storage"
+)
+
+// Automatic backups (see storage/backup.go): daily at the configured time a snapshot of the whole
+// database for the admin and one MindSift backup per active user, both kept for the configured number
+// of days. Admins can also start a run by hand; users list, download and restore their own backups.
+
+var backupRunMu sync.Mutex
+
+func (s *Server) backupRoot() string {
+	return filepath.Join(filepath.Dir(s.cfg.DatabasePath), "backups")
+}
+
+// runBackups makes one full run; returns the name of the system snapshot.
+func (s *Server) runBackups() (string, error) {
+	backupRunMu.Lock()
+	defer backupRunMu.Unlock()
+	now := time.Now()
+	root := s.backupRoot()
+	sys, _ := s.store.GetSystemSettings()
+	keep := storage.DefaultBackupRetentionDays
+	if sys != nil && sys.BackupRetentionDays > 0 {
+		keep = sys.BackupRetentionDays
+	}
+
+	name, err := s.store.WriteSystemSnapshot(filepath.Join(root, "system"), now)
+	if err != nil {
+		return "", err
+	}
+	_ = storage.PruneBackups(filepath.Join(root, "system"), keep, now)
+
+	users, err := s.store.GetAllUsers()
+	if err != nil {
+		return name, err
+	}
+	failed := 0
+	for _, u := range users {
+		if !u.IsActive {
+			continue
+		}
+		dir := storage.UserBackupDir(root, u.ID)
+		if _, err := s.store.WriteUserBackup(u.ID, dir, now); err != nil {
+			failed++
+			slog.Error("Benutzer-Backup fehlgeschlagen", "user_id", u.ID, "error", err)
+			continue
+		}
+		_ = storage.PruneBackups(dir, keep, now)
+	}
+	slog.Info("Backups erstellt", "system", name, "users", len(users), "failed", failed)
+	if failed > 0 {
+		return name, fmt.Errorf("%d Benutzer-Backups fehlgeschlagen (siehe Server-Log)", failed)
+	}
+	return name, nil
+}
+
+// startBackupScheduler runs the backups once a day at the configured time (server time zone). After a
+// restart past that time on a day without a run, it catches up.
+func (s *Server) startBackupScheduler() {
+	ticker := time.NewTicker(time.Minute)
+	defer ticker.Stop()
+	lastRun := ""
+	if files, err := storage.ListBackups(filepath.Join(s.backupRoot(), "system")); err == nil && len(files) > 0 {
+		lastRun = strings.TrimPrefix(files[0].Name, "mindsift-db-")[:10] // date of the newest snapshot
+	}
+	for range ticker.C {
+		sys, err := s.store.GetSystemSettings()
+		if err != nil || sys == nil || !sys.BackupEnabled {
+			continue
+		}
+		now := time.Now()
+		today := now.Format("2006-01-02")
+		if lastRun == today || now.Format("15:04") < sys.BackupTime {
+			continue
+		}
+		lastRun = today
+		if _, err := s.runBackups(); err != nil {
+			slog.Error("Automatisches Backup fehlgeschlagen", "error", err)
+		}
+	}
+}
+
+func (s *Server) handleAdminListBackups(w http.ResponseWriter, r *http.Request) {
+	files, err := storage.ListBackups(filepath.Join(s.backupRoot(), "system"))
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	writeJSON(w, http.StatusOK, files)
+}
+
+func (s *Server) handleAdminRunBackup(w http.ResponseWriter, r *http.Request) {
+	if _, err := s.runBackups(); err != nil {
+		writeError(w, http.StatusInternalServerError, "Backup fehlgeschlagen: "+err.Error())
+		return
+	}
+	s.handleAdminListBackups(w, r)
+}
+
+func (s *Server) handleAdminDownloadBackup(w http.ResponseWriter, r *http.Request) {
+	serveBackupFile(w, r, filepath.Join(s.backupRoot(), "system"), chi.URLParam(r, "name"), "application/gzip")
+}
+
+func (s *Server) handleListMyBackups(w http.ResponseWriter, r *http.Request) {
+	files, err := storage.ListBackups(storage.UserBackupDir(s.backupRoot(), auth.GetUserID(r.Context())))
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	writeJSON(w, http.StatusOK, files)
+}
+
+func (s *Server) handleDownloadMyBackup(w http.ResponseWriter, r *http.Request) {
+	dir := storage.UserBackupDir(s.backupRoot(), auth.GetUserID(r.Context()))
+	serveBackupFile(w, r, dir, chi.URLParam(r, "name"), "application/zip")
+}
+
+// handleRestoreMyBackup imports one of the user's server backups: mode=merge (add next to the data)
+// or mode=restore (empty the chosen sections first), sections=notes,tasks,lists,inbox,themes.
+func (s *Server) handleRestoreMyBackup(w http.ResponseWriter, r *http.Request) {
+	userID := auth.GetUserID(r.Context())
+	path, err := storage.BackupPath(storage.UserBackupDir(s.backupRoot(), userID), chi.URLParam(r, "name"))
+	if err != nil {
+		writeError(w, http.StatusNotFound, err.Error())
+		return
+	}
+	data, err := os.ReadFile(path)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	plan, err := storage.PlanMindSiftImport(data, filepath.Base(path))
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	sections := storage.NormalizeSections(strings.Split(r.URL.Query().Get("sections"), ","))
+	plan = plan.Only(sections)
+	if r.URL.Query().Get("preview") == "1" {
+		writeJSON(w, http.StatusOK, plan.Summary(false))
+		return
+	}
+	s.applyImport(w, userID, plan, sections, r.URL.Query().Get("mode") == "restore")
+}
+
+func serveBackupFile(w http.ResponseWriter, r *http.Request, dir, name, contentType string) {
+	path, err := storage.BackupPath(dir, name)
+	if err != nil {
+		writeError(w, http.StatusNotFound, err.Error())
+		return
+	}
+	w.Header().Set("Content-Type", contentType)
+	w.Header().Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"`, name))
+	http.ServeFile(w, r, path)
+}

internal/api/backups_test.go

@@ -0,0 +1,91 @@
+package api
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/sandrodach/mindsift/internal/auth"
+	"github.com/sandrodach/mindsift/internal/storage"
+)
+
+func TestBackupsRunListDownloadAndRestoreSections(t *testing.T) {
+	srv, store, token := setupTestServer(t)
+	router := srv.Router()
+	claims, _ := auth.ValidateToken(testJWTSecret, token)
+	uid := claims.UserID
+	_, _ = store.CreateDocument(uid, "", "Notiz vom Montag", "📝", "", nil, nil, false)
+	list, _ := store.CreateList(uid, "Einkauf", "🛒", "shopping")
+	_, _ = store.CreateListItem(list.ID, "Milch", "", "", 0, uid)
+	_, _ = store.SaveUserTheme(uid, "", "Mein Theme", ":root[data-theme=\"x\"] { --accent-primary: #f00; }")
+
+	call := func(method, path string) *httptest.ResponseRecorder {
+		req := httptest.NewRequest(method, path, nil)
+		req.Header.Set("Authorization", "Bearer "+token)
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, req)
+		return rec
+	}
+
+	// Admin starts a run: one database snapshot plus a backup for the user
+	rec := call("POST", "/api/v1/admin/backups")
+	if rec.Code != http.StatusOK {
+		t.Fatalf("run backups: %d %s", rec.Code, rec.Body.String())
+	}
+	var sysFiles []storage.BackupFile
+	_ = json.Unmarshal(rec.Body.Bytes(), &sysFiles)
+	if len(sysFiles) != 1 || !strings.HasSuffix(sysFiles[0].Name, ".db.gz") || sysFiles[0].Size == 0 {
+		t.Fatalf("expected one snapshot, got %+v", sysFiles)
+	}
+	if rec := call("GET", "/api/v1/admin/backups/"+sysFiles[0].Name); rec.Code != http.StatusOK || rec.Body.Len() == 0 {
+		t.Fatalf("download snapshot: %d", rec.Code)
+	}
+	if rec := call("GET", "/api/v1/admin/backups/..%2F..%2Fmindsift.db"); rec.Code != http.StatusNotFound {
+		t.Fatalf("path tricks must be refused, got %d", rec.Code)
+	}
+
+	var mine []storage.BackupFile
+	_ = json.Unmarshal(call("GET", "/api/v1/backups").Body.Bytes(), &mine)
+	if len(mine) != 1 {
+		t.Fatalf("expected one user backup, got %+v", mine)
+	}
+
+	// Lose data, then restore only the lists: notes stay as they are now
+	listsBefore, _ := store.GetAllListsForUser(uid)
+	docsBefore, _ := store.GetDocuments(uid)
+	_ = store.PurgeUserSections(uid, map[string]bool{storage.SectionLists: true, storage.SectionThemes: true})
+	_, _ = store.CreateDocument(uid, "", "Notiz vom Dienstag", "📝", "", nil, nil, false)
+	rec = call("POST", "/api/v1/backups/"+mine[0].Name+"/restore?mode=restore&sections=lists,themes")
+	if rec.Code != http.StatusOK {
+		t.Fatalf("restore: %d %s", rec.Code, rec.Body.String())
+	}
+	lists, _ := store.GetAllListsForUser(uid)
+	themes, _ := store.GetUserThemes(uid)
+	docs, _ := store.GetDocuments(uid)
+	if len(lists) != len(listsBefore) || len(themes) != 1 {
+		t.Fatalf("lists and themes should be back: %d of %d lists, %d themes", len(lists), len(listsBefore), len(themes))
+	}
+	if len(docs) != len(docsBefore)+1 {
+		t.Fatalf("notes were not selected and must stay untouched (plus Dienstag), got %d of %d", len(docs), len(docsBefore)+1)
+	}
+
+	// Retention: old files go
+	dir := filepath.Join(srv.backupRoot(), "system")
+	old := filepath.Join(dir, "mindsift-db-2000-01-01-0300.db.gz")
+	_ = os.WriteFile(old, []byte("x"), 0o600)
+	_ = os.Chtimes(old, mustTime("2000-01-01"), mustTime("2000-01-01"))
+	_, _ = srv.runBackups()
+	if _, err := os.Stat(old); !os.IsNotExist(err) {
+		t.Fatalf("backups older than the retention must be deleted")
+	}
+}
+
+func mustTime(day string) (t time.Time) {
+	t, _ = time.Parse("2006-01-02", day)
+	return t
+}

internal/api/clientip.go

@@ -0,0 +1,144 @@
+package api
+
+import (
+	"context"
+	"log/slog"
+	"net"
+	"net/http"
+	"strings"
+	"sync"
+)
+
+// Client IP behind a reverse proxy. The proxy connects to MindSift and passes the visitor's address in
+// X-Forwarded-For / X-Real-IP. Those headers are only believed when the connection comes from a trusted
+// proxy (TRUSTED_PROXIES), otherwise anyone reaching the port directly could claim any address and dodge
+// the login protection.
+//   private (default)  loopback and private networks (Docker, LAN, CGNAT/Tailscale)
+//   all                always believe the headers (old behaviour, switches the check off)
+//   none               never believe them
+//   CIDR list          e.g. "private,203.0.113.0/24"; Cloudflare and other external proxies go here
+
+type clientIPKey struct{}
+
+type clientIPInfo struct {
+	ip string
+	// viaProxyWithoutHeader: the connection came from a trusted proxy that did not say who the
+	// visitor is, so all visitors look the same. Per-IP limits must not apply then.
+	viaProxyWithoutHeader bool
+}
+
+type proxyTrust struct {
+	all      bool
+	networks []*net.IPNet
+}
+
+var privateProxyNets = mustCIDRs("127.0.0.0/8", "::1/128", "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16", "fc00::/7", "100.64.0.0/10")
+
+func parseProxyTrust(spec string) proxyTrust {
+	spec = strings.ToLower(strings.TrimSpace(spec))
+	if spec == "" {
+		spec = "private"
+	}
+	var t proxyTrust
+	for _, part := range strings.Split(spec, ",") {
+		switch part = strings.TrimSpace(part); part {
+		case "", "none":
+		case "all", "*":
+			t.all = true
+		case "private":
+			t.networks = append(t.networks, privateProxyNets...)
+		default:
+			if !strings.Contains(part, "/") {
+				if strings.Contains(part, ":") {
+					part += "/128"
+				} else {
+					part += "/32"
+				}
+			}
+			if _, n, err := net.ParseCIDR(part); err == nil {
+				t.networks = append(t.networks, n)
+			} else {
+				slog.Warn("TRUSTED_PROXIES: Eintrag ignoriert", "entry", part)
+			}
+		}
+	}
+	return t
+}
+
+func (t proxyTrust) trusts(ip net.IP) bool {
+	if t.all {
+		return true
+	}
+	for _, n := range t.networks {
+		if n.Contains(ip) {
+			return true
+		}
+	}
+	return false
+}
+
+func peerIP(remoteAddr string) string {
+	if host, _, err := net.SplitHostPort(remoteAddr); err == nil {
+		return host
+	}
+	return remoteAddr
+}
+
+// resolveClientIP returns the visitor's address for a request coming from peer.
+func (t proxyTrust) resolveClientIP(peer string, h http.Header) clientIPInfo {
+	peerAddr := net.ParseIP(peer)
+	if peerAddr == nil || !t.trusts(peerAddr) {
+		return clientIPInfo{ip: peer}
+	}
+	// X-Forwarded-For: client, proxy1, proxy2 – the visitor is the right-most address that is not one of
+	// our proxies (everything left of it could be made up by the visitor)
+	if xff := h.Get("X-Forwarded-For"); xff != "" {
+		var chain []net.IP
+		for _, part := range strings.Split(xff, ",") {
+			if ip := net.ParseIP(strings.TrimSpace(part)); ip != nil {
+				chain = append(chain, ip)
+			}
+		}
+		if len(chain) > 0 {
+			if t.all {
+				return clientIPInfo{ip: chain[0].String()} // former behaviour: first address counts
+			}
+			for i := len(chain) - 1; i >= 0; i-- {
+				if !t.trusts(chain[i]) {
+					return clientIPInfo{ip: chain[i].String()}
+				}
+			}
+			return clientIPInfo{ip: chain[0].String()} // only proxies in the chain: the visitor is in our network
+		}
+	}
+	for _, name := range []string{"X-Real-IP", "True-Client-IP", "CF-Connecting-IP"} {
+		if ip := net.ParseIP(strings.TrimSpace(h.Get(name))); ip != nil {
+			return clientIPInfo{ip: ip.String()}
+		}
+	}
+	return clientIPInfo{ip: peer, viaProxyWithoutHeader: !peerAddr.IsLoopback()}
+}
+
+var warnProxyHeaderOnce sync.Once
+
+// clientIPMiddleware replaces chi's RealIP: r.RemoteAddr becomes the visitor's address.
+func (s *Server) clientIPMiddleware(next http.Handler) http.Handler {
+	trust := parseProxyTrust(s.cfg.TrustedProxies)
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		info := trust.resolveClientIP(peerIP(r.RemoteAddr), r.Header)
+		if info.viaProxyWithoutHeader {
+			warnProxyHeaderOnce.Do(func() {
+				slog.Warn("Reverse-Proxy übergibt keine Client-IP (X-Forwarded-For/X-Real-IP fehlt); Login-Sperren pro IP sind für diese Anfragen aus", "proxy", info.ip)
+			})
+		}
+		r.RemoteAddr = info.ip
+		next.ServeHTTP(w, r.WithContext(context.WithValue(r.Context(), clientIPKey{}, info)))
+	})
+}
+
+func clientIPFrom(r *http.Request) clientIPInfo {
+	if info, ok := r.Context().Value(clientIPKey{}).(clientIPInfo); ok {
+		return info
+	}
+	return clientIPInfo{ip: peerIP(r.RemoteAddr)}
+}

internal/api/demo.go

@@ -0,0 +1,77 @@
+package api
+
+import (
+	"log/slog"
+	"net/http"
+	"strings"
+	"sync"
+	"time"
+)
+
+// In demo mode the database is reset to the sample data every DEMO_RESET_MINUTES. Requests hold a read
+// lock while they run and the reset takes the write lock, so no request sees half-dropped tables.
+// Long-lived streams (WebSocket, SSE, long polling) are left out, otherwise the reset would wait for
+// them forever; they reconnect or retry on their own. The demo accounts keep their IDs, so sessions
+// stay valid; clients get DEMO_RESET and reload their data.
+
+type demoState struct {
+	gate sync.RWMutex // read: a running request, write: the reset
+
+	mu        sync.Mutex
+	nextReset time.Time
+}
+
+func isLongLivedRequest(r *http.Request) bool {
+	p := r.URL.Path
+	return strings.HasPrefix(p, "/api/v1/ws") || p == "/api/v1/events" ||
+		(strings.HasPrefix(p, "/api/v1/docs/") && strings.HasSuffix(p, "/changes"))
+}
+
+func (s *Server) demoResetGate(next http.Handler) http.Handler {
+	if !s.cfg.DemoMode {
+		return next
+	}
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if isLongLivedRequest(r) || !strings.HasPrefix(r.URL.Path, "/api/") {
+			next.ServeHTTP(w, r)
+			return
+		}
+		s.demo.gate.RLock()
+		defer s.demo.gate.RUnlock()
+		next.ServeHTTP(w, r)
+	})
+}
+
+// demoNextReset is zero when no periodic reset runs.
+func (s *Server) demoNextReset() time.Time {
+	s.demo.mu.Lock()
+	defer s.demo.mu.Unlock()
+	return s.demo.nextReset
+}
+
+func (s *Server) setDemoNextReset(t time.Time) {
+	s.demo.mu.Lock()
+	s.demo.nextReset = t
+	s.demo.mu.Unlock()
+}
+
+func (s *Server) resetDemo() {
+	s.demo.gate.Lock()
+	err := s.store.ResetAndSeedDemo()
+	s.demo.gate.Unlock()
+	if err != nil {
+		slog.Error("Demo-Reset fehlgeschlagen", "error", err)
+		return
+	}
+	s.wsHub.BroadcastSystem("DEMO_RESET")
+}
+
+func (s *Server) startDemoResetTicker() {
+	interval := time.Duration(s.cfg.DemoResetMinutes) * time.Minute
+	for {
+		next := time.Now().Add(interval)
+		s.setDemoNextReset(next)
+		time.Sleep(time.Until(next))
+		s.resetDemo()
+	}
+}

internal/api/demo_test.go

@@ -0,0 +1,90 @@
+package api
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"path/filepath"
+	"strings"
+	"sync"
+	"testing"
+	"time"
+
+	"github.com/sandrodach/mindsift/internal/config"
+	"github.com/sandrodach/mindsift/internal/storage"
+	"github.com/sandrodach/mindsift/internal/ws"
+)
+
+func TestDemoResetKeepsSessionsAndRestoresSampleData(t *testing.T) {
+	dbPath := filepath.Join(t.TempDir(), "demo_reset.db")
+	store, err := storage.NewStore(dbPath)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer store.Close()
+	if err := store.ResetAndSeedDemo(); err != nil {
+		t.Fatal(err)
+	}
+	srv := NewServer(&config.Config{DatabasePath: dbPath, JWTSecret: "demo-secret", DemoMode: true}, store, ws.NewHub(), nil)
+	router := srv.Router()
+	call := func(method, path, token, body string) *httptest.ResponseRecorder {
+		req := httptest.NewRequest(method, path, strings.NewReader(body))
+		req.Header.Set("Content-Type", "application/json")
+		if token != "" {
+			req.Header.Set("Authorization", "Bearer "+token)
+		}
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, req)
+		return rec
+	}
+	var login struct{ Token string }
+	_ = json.Unmarshal(call("POST", "/api/v1/auth/login", "", `{"login":"admin","password":"admin"}`).Body.Bytes(), &login)
+	countDocs := func() int {
+		var docs []json.RawMessage
+		_ = json.Unmarshal(call("GET", "/api/v1/documents", login.Token, "").Body.Bytes(), &docs)
+		return len(docs)
+	}
+	seeded := countDocs()
+	if seeded == 0 {
+		t.Fatal("expected sample notes")
+	}
+	if rec := call("POST", "/api/v1/documents", login.Token, `{"title":"Testnotiz"}`); rec.Code >= 300 {
+		t.Fatalf("create note: %d %s", rec.Code, rec.Body.String())
+	}
+
+	// Requests running during the reset must neither fail half-way nor see missing tables
+	var wg sync.WaitGroup
+	failures := make(chan int, 50)
+	for i := 0; i < 50; i++ {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			if rec := call("GET", "/api/v1/documents", login.Token, ""); rec.Code != http.StatusOK {
+				failures <- rec.Code
+			}
+		}()
+	}
+	srv.resetDemo()
+	wg.Wait()
+	close(failures)
+	for code := range failures {
+		t.Errorf("request during reset failed with %d", code)
+	}
+
+	if rec := call("GET", "/api/v1/auth/me", login.Token, ""); rec.Code != http.StatusOK {
+		t.Fatalf("session must survive the reset, got %d", rec.Code)
+	}
+	if n := countDocs(); n != seeded {
+		t.Errorf("reset should restore the %d sample notes, got %d", seeded, n)
+	}
+
+	srv.setDemoNextReset(time.Now().Add(90 * time.Second))
+	var st struct {
+		DemoNextReset      string `json:"demoNextReset"`
+		DemoResetInSeconds int    `json:"demoResetInSeconds"`
+	}
+	_ = json.Unmarshal(call("GET", "/api/v1/auth/status", "", "").Body.Bytes(), &st)
+	if st.DemoNextReset == "" || st.DemoResetInSeconds < 85 || st.DemoResetInSeconds > 90 {
+		t.Errorf("status should announce the next reset: %+v", st)
+	}
+}

internal/api/handlers_account.go

@@ -82,15 +82,21 @@ func (s *Server) runImport(w http.ResponseWriter, r *http.Request, plan *storage
 		writeError(w, http.StatusBadRequest, err.Error())
 		return
 	}
+	// sections=notes,tasks,…: only these parts of a MindSift backup (all when not given)
+	sections := storage.NormalizeSections(strings.Split(r.URL.Query().Get("sections"), ","))
+	plan = plan.Only(sections)
 	if r.URL.Query().Get("preview") == "1" {
 		writeJSON(w, http.StatusOK, plan.Summary(false))
 		return
 	}
-	userID := auth.GetUserID(r.Context())
+	s.applyImport(w, auth.GetUserID(r.Context()), plan, sections, r.URL.Query().Get("mode") == "restore" && strings.HasSuffix(r.URL.Path, "/mindsift"))
-	// mode=restore (MindSift data only): replace everything instead of adding next to it. The plan is
+}
-	// fully read and validated at this point, so a broken file never wipes anything.
+
-	if r.URL.Query().Get("mode") == "restore" && strings.HasSuffix(r.URL.Path, "/mindsift") {
+// applyImport adds the plan to the user's data; with restore the chosen sections are emptied first.
-		if err := s.store.PurgeUserData(userID); err != nil {
+// The plan is fully read and validated at this point, so a broken file never wipes anything.
+func (s *Server) applyImport(w http.ResponseWriter, userID string, plan *storage.ImportPlan, sections map[string]bool, restore bool) {
+	if restore {
+		if err := s.store.PurgeUserSections(userID, sections); err != nil {
 			writeError(w, http.StatusInternalServerError, "Wiederherstellen abgebrochen: "+err.Error())
 			return
 		}

internal/api/handlers_admin.go

@@ -111,8 +111,12 @@ func (s *Server) handleAdminCreateUser(w http.ResponseWriter, r *http.Request) {
 		writeError(w, http.StatusBadRequest, "Ungültiges JSON")
 		return
 	}
-	if req.Email == "" || req.Password == "" {
+	if req.Email == "" {
-		writeError(w, http.StatusBadRequest, "E-Mail und Passwort erforderlich")
+		writeError(w, http.StatusBadRequest, "E-Mail-Adresse erforderlich")
+		return
+	}
+	if err := auth.ValidatePassword(req.Password); err != nil {
+		writeError(w, http.StatusBadRequest, err.Error())
 		return
 	}
 	// Only full server admin can create another server admin
@@ -184,6 +188,9 @@ func (s *Server) handleAdminUpdateUser(w http.ResponseWriter, r *http.Request) {
 		writeError(w, http.StatusBadRequest, err.Error())
 		return
 	}
+	if req.IsActive != nil && !*req.IsActive {
+		s.wsHub.DisconnectUser(targetUserID)
+	}
 	writeJSON(w, http.StatusOK, u)
 }
 
@@ -200,19 +207,25 @@ func (s *Server) handleAdminResetPassword(w http.ResponseWriter, r *http.Request
 	var req struct {
 		Password string `json:"password"`
 	}
-	if err := json.NewDecoder(r.Body).Decode(&req); err != nil || strings.TrimSpace(req.Password) == "" {
+	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
 		writeError(w, http.StatusBadRequest, "Neues Passwort erforderlich")
 		return
 	}
+	if err := auth.ValidatePassword(req.Password); err != nil {
+		writeError(w, http.StatusBadRequest, err.Error())
+		return
+	}
 	hash, err := auth.HashPassword(req.Password)
 	if err != nil {
 		writeError(w, http.StatusInternalServerError, "Passwort-Hash fehlgeschlagen")
 		return
 	}
+	s.loginGuard.unlockAccount(targetUserID)
 	if err := s.store.UpdateUserPassword(targetUserID, hash); err != nil {
 		writeError(w, http.StatusInternalServerError, err.Error())
 		return
 	}
+	s.wsHub.DisconnectUser(targetUserID)
 	writeJSON(w, http.StatusOK, map[string]bool{"success": true})
 }
 
@@ -306,7 +319,10 @@ func (s *Server) handleAdminUpdateSettings(w http.ResponseWriter, r *http.Reques
 	}
 	// A stricter mode takes away what is no longer allowed (shares, group memberships, assignments)
 	if settings.SharingMode != previousMode {
-		_, _ = s.store.PruneSharing(settings.SharingMode, false)
+		if _, err := s.store.PruneSharing(settings.SharingMode, false); err != nil {
+			writeError(w, http.StatusInternalServerError, "Freigaben konnten nicht angepasst werden: "+err.Error())
+			return
+		}
 	}
 	settings.SMTPConfiguredViaEnv = strings.TrimSpace(s.cfg.SMTPHost) != ""
 	writeJSON(w, http.StatusOK, settings)

internal/api/handlers_auth.go

@@ -37,7 +37,7 @@ func (s *Server) handleAuthStatus(w http.ResponseWriter, r *http.Request) {
 			instanceName = sys.InstanceName
 		}
 	}
-	writeJSON(w, http.StatusOK, map[string]interface{}{
+	status := map[string]interface{}{
 		"needsSetup":        count == 0,
 		"allowRegistration": allowReg,
 		"instanceName":      instanceName,
@@ -51,7 +51,14 @@ func (s *Server) handleAuthStatus(w http.ResponseWriter, r *http.Request) {
 			"privacyUrl":        s.cfg.Legal.PrivacyURL,
 			"hasPrivacyContent": s.cfg.Legal.PrivacyContent != "",
 		},
-	})
+	}
+	// Countdown to the next demo reset; seconds as well, so client clocks do not matter
+	if next := s.demoNextReset(); !next.IsZero() {
+		status["demoNextReset"] = next.UTC().Format(time.RFC3339)
+		status["demoResetInSeconds"] = int(time.Until(next).Seconds())
+		status["demoResetMinutes"] = s.cfg.DemoResetMinutes
+	}
+	writeJSON(w, http.StatusOK, status)
 }
 
 // handleLegalText serves the configured Markdown of the imprint or privacy notice (public, no login).
@@ -90,8 +97,12 @@ func (s *Server) handleFirstBootSetup(w http.ResponseWriter, r *http.Request) {
 		writeError(w, http.StatusBadRequest, "Ungültige Anfrage")
 		return
 	}
-	if strings.TrimSpace(req.Email) == "" || len(req.Password) < 4 {
+	if strings.TrimSpace(req.Email) == "" {
-		writeError(w, http.StatusBadRequest, "E-Mail und Passwort (mind. 4 Zeichen) erforderlich")
+		writeError(w, http.StatusBadRequest, "E-Mail-Adresse erforderlich")
+		return
+	}
+	if err := auth.ValidatePassword(req.Password); err != nil {
+		writeError(w, http.StatusBadRequest, err.Error())
 		return
 	}
 	if strings.TrimSpace(req.DisplayName) == "" {
@@ -117,7 +128,10 @@ func (s *Server) handleFirstBootSetup(w http.ResponseWriter, r *http.Request) {
 		}
 		sys.AllowRegistration = req.AllowRegistration
 		sys.SharingMode = storage.NormalizeSharingMode(req.SharingMode)
-		_ = s.store.UpdateSystemSettings(sys)
+		if err := s.store.UpdateSystemSettings(sys); err != nil {
+			writeError(w, http.StatusInternalServerError, "Einstellungen konnten nicht gespeichert werden: "+err.Error())
+			return
+		}
 		// In organization mode the first admin starts in an organization named after the instance
 		if sys.SharingMode == storage.SharingOrganizations {
 			if org, err := s.store.CreateOrganization(sys.InstanceName); err == nil {
@@ -154,8 +168,12 @@ func (s *Server) handleRegister(w http.ResponseWriter, r *http.Request) {
 		writeError(w, http.StatusBadRequest, "Ungültige Anfrage")
 		return
 	}
-	if strings.TrimSpace(req.Email) == "" || len(req.Password) < 4 {
+	if strings.TrimSpace(req.Email) == "" {
-		writeError(w, http.StatusBadRequest, "E-Mail und Passwort (mind. 4 Zeichen) erforderlich")
+		writeError(w, http.StatusBadRequest, "E-Mail-Adresse erforderlich")
+		return
+	}
+	if err := auth.ValidatePassword(req.Password); err != nil {
+		writeError(w, http.StatusBadRequest, err.Error())
 		return
 	}
 	if strings.TrimSpace(req.DisplayName) == "" {
@@ -201,7 +219,10 @@ func (s *Server) handleRegister(w http.ResponseWriter, r *http.Request) {
 	}
 
 	if validInvite != nil {
-		_ = s.store.MarkUserInviteUsed(validInvite.ID, user.ID)
+		// Otherwise the code could be used again
+		if err := s.store.MarkUserInviteUsed(validInvite.ID, user.ID); err != nil {
+			slog.Error("Einladungscode konnte nicht als benutzt markiert werden", "invite", validInvite.ID, "error", err)
+		}
 		if validInvite.OrganizationID != "" {
 			_ = s.store.SetUserOrganization(user.ID, validInvite.OrganizationID)
 			user.OrganizationID = validInvite.OrganizationID
@@ -246,16 +267,30 @@ func (s *Server) handleLogin(w http.ResponseWriter, r *http.Request) {
 	}
 
 	user, err := s.store.GetUserByLogin(identifier)
+	// Unknown names are counted under the typed login, so locking looks the same as for real accounts
+	account := "login:" + strings.ToLower(identifier)
+	if err == nil {
+		account = user.ID
+	}
+	ip := clientIPFrom(r)
+	if wait := s.loginGuard.lockedFor(account, ip); wait > 0 {
+		slog.Warn("Login gesperrt nach Fehlversuchen", "login", identifier, "remote_addr", r.RemoteAddr, "wait", wait.Round(time.Second))
+		writeLoginLocked(w, wait)
+		return
+	}
 	if err != nil {
+		s.loginGuard.recordFailure(account, ip)
 		slog.Warn("Login fehlgeschlagen: Benutzer existiert nicht", "login", identifier, "remote_addr", r.RemoteAddr)
 		writeError(w, http.StatusUnauthorized, "Benutzername/E-Mail oder Passwort ungültig")
 		return
 	}
 	if !auth.CheckPassword(req.Password, user.PasswordHash) {
+		s.loginGuard.recordFailure(account, ip)
 		slog.Warn("Login fehlgeschlagen: Falsches Passwort", "login", identifier, "user_id", user.ID, "display_name", user.DisplayName, "remote_addr", r.RemoteAddr)
 		writeError(w, http.StatusUnauthorized, "Benutzername/E-Mail oder Passwort ungültig")
 		return
 	}
+	s.loginGuard.recordSuccess(account, ip)
 	if !user.IsActive {
 		slog.Warn("Login verweigert: Benutzerkonto ist deaktiviert", "login", identifier, "user_id", user.ID, "display_name", user.DisplayName, "remote_addr", r.RemoteAddr)
 		writeError(w, http.StatusForbidden, "Dieses Benutzerkonto ist deaktiviert")
@@ -368,9 +403,15 @@ func (s *Server) handleLogout(w http.ResponseWriter, r *http.Request) {
 			} else {
 				exp = time.Now().Add(30 * 24 * time.Hour)
 			}
-			_ = s.store.RevokeToken(tokenStr, userID, exp)
+			// The session must really end; the client is told if it did not
+			if err := s.store.RevokeToken(tokenStr, userID, exp); err != nil {
+				writeError(w, http.StatusInternalServerError, "Abmelden fehlgeschlagen")
+				return
 			}
 		}
+	}
+	// Streams are not tied to one session; other devices reconnect with a new ticket on their own
+	s.wsHub.DisconnectUser(userID)
 	writeJSON(w, http.StatusOK, map[string]bool{"success": true})
 }
 
@@ -380,6 +421,7 @@ func (s *Server) handleRevokeAllSessions(w http.ResponseWriter, r *http.Request)
 		writeError(w, http.StatusInternalServerError, "Sitzungen konnten nicht beendet werden")
 		return
 	}
+	s.wsHub.DisconnectUser(userID)
 	writeJSON(w, http.StatusOK, map[string]bool{"success": true})
 }
 
@@ -415,12 +457,20 @@ func (s *Server) handleUpdateUserSettings(w http.ResponseWriter, r *http.Request
 		}
 	}
 	if req.Password != nil && strings.TrimSpace(*req.Password) != "" {
+		if err := auth.ValidatePassword(*req.Password); err != nil {
+			writeError(w, http.StatusBadRequest, err.Error())
+			return
+		}
 		hash, err := auth.HashPassword(*req.Password)
 		if err != nil {
 			writeError(w, http.StatusInternalServerError, "Fehler beim Hashen des Passworts")
 			return
 		}
-		_ = s.store.UpdateUserPassword(userID, hash)
+		if err := s.store.UpdateUserPassword(userID, hash); err != nil {
+			writeError(w, http.StatusInternalServerError, "Passwort konnte nicht gespeichert werden")
+			return
+		}
+		s.wsHub.DisconnectUser(userID)
 	}
 	u, err := s.store.UpdateUserFull(
 		userID,

internal/api/handlers_integrations.go

@@ -1,7 +1,9 @@
 package api
 
 import (
+	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -9,6 +11,7 @@ import (
 
 	"github.com/go-chi/chi/v5"
 	"github.com/sandrodach/mindsift/internal/auth"
+	"github.com/sandrodach/mindsift/internal/storage"
 )
 
 // --- API KEYS & WEBHOOK INGESTION ---
@@ -27,10 +30,11 @@ func (s *Server) handleCreateAPIKey(w http.ResponseWriter, r *http.Request) {
 	userID := auth.GetUserID(r.Context())
 	var req struct {
 		Name   string   `json:"name"`
+		Scopes []string `json:"scopes"`
 	}
 	_ = json.NewDecoder(r.Body).Decode(&req)
 
-	key, err := s.store.CreateAPIKey(userID, req.Name)
+	key, err := s.store.CreateAPIKey(userID, req.Name, req.Scopes)
 	if err != nil {
 		writeError(w, http.StatusInternalServerError, err.Error())
 		return
@@ -59,11 +63,14 @@ func (s *Server) handleWebhookIngest(w http.ResponseWriter, r *http.Request) {
 	}
 
 	// Same checks as every other request (revoked/outdated sessions, inactive accounts)
-	user, _ := s.authenticateToken(token)
+	user, keyScopes := s.authenticateToken(token)
 	if user == nil {
 		writeError(w, http.StatusUnauthorized, "Ungültiger Webhook-Token oder API-Key")
 		return
 	}
+	if keyScopes != nil {
+		r = r.WithContext(context.WithValue(r.Context(), apiKeyScopesKey{}, keyScopes))
+	}
 
 	var req struct {
 		Title    string   `json:"title"`
@@ -75,6 +82,13 @@ func (s *Server) handleWebhookIngest(w http.ResponseWriter, r *http.Request) {
 		Tags     []string `json:"tags"`
 		DueDate  string   `json:"dueDate"`
 		DueDate2 string   `json:"due_date"`
+		// Where it goes: "triage" (default, inbox), "task" or "list_item"; "type" is accepted as well
+		Target     string `json:"target"`
+		Type       string `json:"type"`
+		TaskListID string `json:"taskListId"`
+		ListID     string `json:"listId"`
+		Category   string `json:"category"`
+		Quantity   string `json:"quantity"`
 	}
 
 	bodyBytes, _ := io.ReadAll(r.Body)
@@ -120,8 +134,20 @@ func (s *Server) handleWebhookIngest(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	if req.Priority == "" {
+	target := strings.ToLower(strings.TrimSpace(req.Target))
-		req.Priority = "high"
+	if target == "" {
+		target = strings.ToLower(strings.TrimSpace(req.Type))
+	}
+	switch target {
+	case "", "triage", "inbox":
+		target = "triage"
+	case "task", "list_item":
+	default:
+		writeError(w, http.StatusBadRequest, "Unbekanntes Ziel – erlaubt: triage, task, list_item")
+		return
+	}
+	if !requireDeliveryScope(w, r, target) {
+		return
 	}
 
 	source := strings.ToLower(strings.TrimSpace(req.Source))
@@ -129,6 +155,18 @@ func (s *Server) handleWebhookIngest(w http.ResponseWriter, r *http.Request) {
 		source = "webhook"
 	}
 
+	if target == "list_item" {
+		s.ingestListItem(w, user.ID, req.ListID, bodyText, req.Category, req.Quantity)
+		return
+	}
+	if target == "task" {
+		s.ingestTask(w, user.ID, bodyText, req.Priority, source, dueDate, req.TaskListID)
+		return
+	}
+
+	if req.Priority == "" {
+		req.Priority = "high"
+	}
 	thought, err := s.store.CreateThought(user.ID, bodyText, req.Priority, source, dueDate)
 	if err != nil {
 		writeError(w, http.StatusInternalServerError, err.Error())
@@ -142,3 +180,50 @@ func (s *Server) handleWebhookIngest(w http.ResponseWriter, r *http.Request) {
 		"thought": thought,
 	})
 }
+
+// ingestTask creates a task directly (scope webhook:task), optionally in a task list the owner of
+// the key may write to.
+func (s *Server) ingestTask(w http.ResponseWriter, userID, content, priority, source, dueDate, taskListID string) {
+	if priority == "" {
+		priority = "normal"
+	}
+	if taskListID != "" && !s.store.CanEditTaskList(userID, taskListID) {
+		writeError(w, http.StatusForbidden, storage.ErrTaskListReadOnly.Error())
+		return
+	}
+	thought, err := s.store.CreateThoughtWithDetails(userID, content, priority, source, dueDate, taskListID, "todo", "")
+	if err != nil {
+		writeStoreError(w, http.StatusBadRequest, err)
+		return
+	}
+	task, err := s.store.UpdateThoughtTriage(userID, thought.ID, "keep", "task", "", dueDate, taskListID)
+	if err != nil {
+		writeStoreError(w, http.StatusBadRequest, err)
+		return
+	}
+	s.wsHub.BroadcastToUsers(s.taskAudience(task), "TASK_CREATED", task)
+	writeJSON(w, http.StatusCreated, map[string]interface{}{"status": "ingested", "task": task})
+}
+
+// ingestListItem adds an item to a list (scope webhook:list) the owner of the key may write to.
+func (s *Server) ingestListItem(w http.ResponseWriter, userID, listID, content, category, quantity string) {
+	if strings.TrimSpace(listID) == "" {
+		writeError(w, http.StatusBadRequest, "Feld 'listId' ist für Listeneinträge erforderlich")
+		return
+	}
+	if err := s.store.EnsureListItemsWritable(userID, listID, ""); err != nil {
+		status := http.StatusNotFound
+		if errors.Is(err, storage.ErrListReadOnly) {
+			status = http.StatusForbidden
+		}
+		writeError(w, status, err.Error())
+		return
+	}
+	item, err := s.store.CreateListItem(listID, content, category, quantity, 0, userID)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	s.wsHub.BroadcastListEvent(listID, "ITEM_CREATED", item)
+	writeJSON(w, http.StatusCreated, map[string]interface{}{"status": "ingested", "item": item})
+}

internal/api/handlers_lists.go

@@ -2,12 +2,14 @@ package api
 
 import (
 	"encoding/json"
+	"errors"
 	"net/http"
 	"strings"
 
 	"github.com/go-chi/chi/v5"
 	"github.com/sandrodach/mindsift/internal/auth"
 	"github.com/sandrodach/mindsift/internal/domain"
+	"github.com/sandrodach/mindsift/internal/storage"
 )
 
 // --- REALTIME LISTS & SHARING ---
@@ -138,6 +140,9 @@ func (s *Server) handleDeleteListShare(w http.ResponseWriter, r *http.Request) {
 func (s *Server) handleCreateListItem(w http.ResponseWriter, r *http.Request) {
 	userID := auth.GetUserID(r.Context())
 	listID := chi.URLParam(r, "id")
+	if !s.listItemsWriteAllowed(w, r, "") {
+		return
+	}
 	var req struct {
 		Content  string `json:"content"`
 		Category string `json:"category"`
@@ -162,6 +167,9 @@ func (s *Server) handleToggleListItem(w http.ResponseWriter, r *http.Request) {
 	userID := auth.GetUserID(r.Context())
 	listID := chi.URLParam(r, "id")
 	itemID := chi.URLParam(r, "itemId")
+	if !s.listItemsWriteAllowed(w, r, itemID) {
+		return
+	}
 
 	var req struct {
 		IsCompleted bool `json:"isCompleted"`
@@ -190,6 +198,9 @@ func (s *Server) handleToggleListItem(w http.ResponseWriter, r *http.Request) {
 func (s *Server) handleUpdateListItem(w http.ResponseWriter, r *http.Request) {
 	listID := chi.URLParam(r, "id")
 	itemID := chi.URLParam(r, "itemId")
+	if !s.listItemsWriteAllowed(w, r, itemID) {
+		return
+	}
 
 	var req struct {
 		Content  *string `json:"content"`
@@ -214,6 +225,9 @@ func (s *Server) handleUpdateListItem(w http.ResponseWriter, r *http.Request) {
 func (s *Server) handleDeleteListItem(w http.ResponseWriter, r *http.Request) {
 	listID := chi.URLParam(r, "id")
 	itemID := chi.URLParam(r, "itemId")
+	if !s.listItemsWriteAllowed(w, r, itemID) {
+		return
+	}
 
 	_, err := s.store.DeleteListItem(itemID)
 	if err != nil {
@@ -230,6 +244,9 @@ func (s *Server) handleDeleteListItem(w http.ResponseWriter, r *http.Request) {
 
 func (s *Server) handleClearCompletedItems(w http.ResponseWriter, r *http.Request) {
 	listID := chi.URLParam(r, "id")
+	if !s.listItemsWriteAllowed(w, r, "") {
+		return
+	}
 	removed, err := s.store.ClearCompletedListItems(listID)
 	if err != nil {
 		writeError(w, http.StatusInternalServerError, err.Error())
@@ -245,6 +262,9 @@ func (s *Server) handleClearCompletedItems(w http.ResponseWriter, r *http.Reques
 
 func (s *Server) handleReorderListItems(w http.ResponseWriter, r *http.Request) {
 	listID := chi.URLParam(r, "id")
+	if !s.listItemsWriteAllowed(w, r, "") {
+		return
+	}
 	var req struct {
 		Items []domain.ListItemReorderItem `json:"items"`
 	}
@@ -264,3 +284,18 @@ func (s *Server) handleReorderListItems(w http.ResponseWriter, r *http.Request)
 	})
 	writeJSON(w, http.StatusOK, map[string]bool{"success": true})
 }
+
+// listItemsWriteAllowed answers 404 (no access, or item not in this list) or 403 (viewer) and returns
+// false; every request changing list items goes through it.
+func (s *Server) listItemsWriteAllowed(w http.ResponseWriter, r *http.Request, itemID string) bool {
+	err := s.store.EnsureListItemsWritable(auth.GetUserID(r.Context()), chi.URLParam(r, "id"), itemID)
+	switch {
+	case err == nil:
+		return true
+	case errors.Is(err, storage.ErrListReadOnly):
+		writeError(w, http.StatusForbidden, err.Error())
+	default:
+		writeError(w, http.StatusNotFound, err.Error())
+	}
+	return false
+}

internal/api/handlers_tasklists.go

@@ -72,7 +72,7 @@ func (s *Server) handleDeleteTaskList(w http.ResponseWriter, r *http.Request) {
 	listID := chi.URLParam(r, "id")
 	audienceBefore := s.store.GetTaskListUserIDs(listID)
 	if err := s.store.DeleteTaskList(userID, listID); err != nil {
-		writeError(w, http.StatusInternalServerError, err.Error())
+		writeError(w, http.StatusNotFound, err.Error())
 		return
 	}
 	s.broadcastTaskListChange(listID, audienceBefore, "TASK_LIST_DELETED")

internal/api/handlers_teams.go

@@ -52,7 +52,10 @@ func (s *Server) handleCreateTeamDirect(w http.ResponseWriter, r *http.Request)
 		return
 	}
 	// Automatically add creator to team as group admin
-	_ = s.store.AddTeamMember(team.ID, userID, "admin")
+	if err := s.store.AddTeamMember(team.ID, userID, "admin"); err != nil {
+		writeError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
 	team.Members, _ = s.store.GetTeamMembers(team.ID)
 	writeJSON(w, http.StatusCreated, team)
 }

internal/api/handlers_thoughts.go

@@ -60,6 +60,10 @@ func (s *Server) handleCaptureInbox(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
+	if !requireDeliveryScope(w, r, strings.TrimSpace(req.Target)) {
+		return
+	}
+
 	thought, err := s.store.CreateThoughtWithDetails(userID, req.Content, req.Priority, source, dueDate, taskListID, "todo", "")
 	if err != nil {
 		writeStoreError(w, http.StatusBadRequest, err)
@@ -280,7 +284,10 @@ func (s *Server) handleUpdateThought(w http.ResponseWriter, r *http.Request) {
 func (s *Server) handleUnlinkEnhancedTask(w http.ResponseWriter, r *http.Request) {
 	userID := auth.GetUserID(r.Context())
 	thoughtID := chi.URLParam(r, "id")
-	s.store.UnlinkTaskFromDocBlock(userID, thoughtID)
+	if err := s.store.UnlinkTaskFromDocBlock(userID, thoughtID); err != nil {
+		writeStoreError(w, http.StatusNotFound, err)
+		return
+	}
 	writeJSON(w, http.StatusOK, map[string]bool{"unlinked": true})
 }
 
@@ -293,7 +300,6 @@ func (s *Server) handleDeleteThought(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	audience := s.taskAudience(th)
-	s.store.UnlinkTaskFromDocBlock(userID, thoughtID)
 	if err := s.store.DeleteThought(userID, thoughtID); err != nil {
 		writeStoreError(w, http.StatusInternalServerError, err)
 		return

internal/api/loginguard.go

@@ -0,0 +1,147 @@
+package api
+
+import (
+	"fmt"
+	"math"
+	"net/http"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+)
+
+// Brute-force protection for the login (FLAW-09). Failed attempts are counted in memory in three
+// buckets; when one is full, logins for it are refused with 429 for the lock time:
+//   account + IP   3 failures   the attacker's address is locked out of this account, the real owner
+//                               logging in from elsewhere is not
+//   account       20 failures   stops attacks spread over many addresses
+//   IP            30 failures   stops one address trying many accounts
+// A bucket counts failures within the lock window and starts over afterwards. A successful login
+// clears the account buckets; a password reset clears the account completely. LOGIN_PROTECTION=false
+// switches all of it off. Counters are lost on restart, which is fine for this purpose.
+
+const (
+	loginLockWindow       = 15 * time.Minute
+	loginLimitAccountIP   = 3
+	loginLimitAccount     = 20
+	loginLimitIP          = 30
+	loginGuardCleanupEach = 5 * time.Minute
+)
+
+type loginBucket struct {
+	count       int
+	windowStart time.Time
+	lockedUntil time.Time
+}
+
+type loginGuard struct {
+	enabled bool
+	now     func() time.Time
+
+	mu          sync.Mutex
+	buckets     map[string]*loginBucket
+	lastCleanup time.Time
+}
+
+func newLoginGuard(enabled bool) *loginGuard {
+	return &loginGuard{enabled: enabled, now: time.Now, buckets: map[string]*loginBucket{}}
+}
+
+type loginKey struct {
+	key   string
+	limit int
+}
+
+// loginKeys: account is the user ID (or the typed login for unknown names, so both look the same).
+// The IP buckets are left out when the IP is not known (proxy without client header).
+func loginKeys(account string, ip clientIPInfo) []loginKey {
+	keys := []loginKey{{"acct:" + account, loginLimitAccount}}
+	if !ip.viaProxyWithoutHeader && ip.ip != "" {
+		keys = append(keys, loginKey{"acctip:" + account + "|" + ip.ip, loginLimitAccountIP}, loginKey{"ip:" + ip.ip, loginLimitIP})
+	}
+	return keys
+}
+
+// lockedFor returns how long the login is still refused (0 = allowed).
+func (g *loginGuard) lockedFor(account string, ip clientIPInfo) time.Duration {
+	if !g.enabled {
+		return 0
+	}
+	g.mu.Lock()
+	defer g.mu.Unlock()
+	now := g.now()
+	var wait time.Duration
+	for _, k := range loginKeys(account, ip) {
+		if b := g.buckets[k.key]; b != nil && b.lockedUntil.After(now) && b.lockedUntil.Sub(now) > wait {
+			wait = b.lockedUntil.Sub(now)
+		}
+	}
+	return wait
+}
+
+func (g *loginGuard) recordFailure(account string, ip clientIPInfo) {
+	if !g.enabled {
+		return
+	}
+	g.mu.Lock()
+	defer g.mu.Unlock()
+	now := g.now()
+	g.cleanupLocked(now)
+	for _, k := range loginKeys(account, ip) {
+		b := g.buckets[k.key]
+		if b == nil || now.Sub(b.windowStart) > loginLockWindow {
+			b = &loginBucket{windowStart: now}
+			g.buckets[k.key] = b
+		}
+		b.count++
+		if b.count >= k.limit {
+			b.lockedUntil = now.Add(loginLockWindow)
+		}
+	}
+}
+
+// recordSuccess clears the counters of this account (the IP bucket stays, so one valid login cannot
+// be used to keep trying other accounts).
+func (g *loginGuard) recordSuccess(account string, ip clientIPInfo) {
+	if !g.enabled {
+		return
+	}
+	g.mu.Lock()
+	defer g.mu.Unlock()
+	delete(g.buckets, "acct:"+account)
+	delete(g.buckets, "acctip:"+account+"|"+ip.ip)
+}
+
+// unlockAccount lifts every lock of the account, e.g. after a password reset by mail or by an admin.
+func (g *loginGuard) unlockAccount(account string) {
+	g.mu.Lock()
+	defer g.mu.Unlock()
+	for k := range g.buckets {
+		if k == "acct:"+account || strings.HasPrefix(k, "acctip:"+account+"|") {
+			delete(g.buckets, k)
+		}
+	}
+}
+
+func (g *loginGuard) cleanupLocked(now time.Time) {
+	if now.Sub(g.lastCleanup) < loginGuardCleanupEach {
+		return
+	}
+	g.lastCleanup = now
+	for k, b := range g.buckets {
+		if now.Sub(b.windowStart) > loginLockWindow && !b.lockedUntil.After(now) {
+			delete(g.buckets, k)
+		}
+	}
+}
+
+func writeLoginLocked(w http.ResponseWriter, wait time.Duration) {
+	minutes := int(math.Ceil(wait.Minutes()))
+	w.Header().Set("Retry-After", strconv.Itoa(int(math.Ceil(wait.Seconds()))))
+	unit := "Minuten"
+	if minutes == 1 {
+		unit = "Minute"
+	}
+	writeError(w, http.StatusTooManyRequests,
+		fmt.Sprintf("Zu viele fehlgeschlagene Anmeldeversuche. Die Anmeldung ist für noch %d %s gesperrt.", minutes, unit))
+}

internal/api/loginguard_test.go

@@ -0,0 +1,136 @@
+package api
+
+import (
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/sandrodach/mindsift/internal/auth"
+)
+
+func TestResolveClientIP(t *testing.T) {
+	h := func(kv ...string) http.Header {
+		out := http.Header{}
+		for i := 0; i < len(kv); i += 2 {
+			out.Set(kv[i], kv[i+1])
+		}
+		return out
+	}
+	private := parseProxyTrust("private")
+	cases := []struct {
+		name  string
+		trust proxyTrust
+		peer  string
+		hdr   http.Header
+		want  string
+		noHdr bool
+	}{
+		{"proxy in docker network passes the visitor", private, "172.18.0.2", h("X-Forwarded-For", "203.0.113.7"), "203.0.113.7", false},
+		{"spoofed left part of the chain is ignored", private, "172.18.0.2", h("X-Forwarded-For", "1.2.3.4, 203.0.113.7, 10.0.0.5"), "203.0.113.7", false},
+		{"X-Real-IP from a trusted proxy", private, "127.0.0.1", h("X-Real-IP", "198.51.100.9"), "198.51.100.9", false},
+		{"direct visitor cannot fake an address", private, "203.0.113.50", h("X-Forwarded-For", "1.2.3.4"), "203.0.113.50", false},
+		{"proxy without header is flagged", private, "172.18.0.2", h(), "172.18.0.2", true},
+		{"all: headers always believed", parseProxyTrust("all"), "203.0.113.50", h("X-Forwarded-For", "1.2.3.4, 5.6.7.8"), "1.2.3.4", false},
+		{"none: headers never believed", parseProxyTrust("none"), "172.18.0.2", h("X-Forwarded-For", "1.2.3.4"), "172.18.0.2", false},
+		{"external proxy by CIDR", parseProxyTrust("private,198.51.100.0/24"), "198.51.100.1", h("CF-Connecting-IP", "203.0.113.8"), "203.0.113.8", false},
+	}
+	for _, c := range cases {
+		got := c.trust.resolveClientIP(c.peer, c.hdr)
+		if got.ip != c.want || got.viaProxyWithoutHeader != c.noHdr {
+			t.Errorf("%s: got %+v, want %s (noHeader=%v)", c.name, got, c.want, c.noHdr)
+		}
+	}
+}
+
+func TestLoginGuardBuckets(t *testing.T) {
+	g := newLoginGuard(true)
+	now := time.Date(2026, 10, 29, 12, 0, 0, 0, time.UTC)
+	g.now = func() time.Time { return now }
+	attacker := clientIPInfo{ip: "203.0.113.66"}
+	owner := clientIPInfo{ip: "198.51.100.10"}
+
+	for i := 0; i < loginLimitAccountIP; i++ {
+		g.recordFailure("usr_admin", attacker)
+	}
+	if g.lockedFor("usr_admin", attacker) != loginLockWindow {
+		t.Fatalf("3 failures from one address must lock that address out of the account")
+	}
+	if g.lockedFor("usr_admin", owner) != 0 {
+		t.Fatalf("the owner logging in from elsewhere must not be locked out")
+	}
+
+	// Spread over many addresses: the account itself locks at 20
+	for i := 0; i < loginLimitAccount; i++ {
+		g.recordFailure("usr_admin", clientIPInfo{ip: "192.0.2." + string(rune('0'+i%10)) + string(rune('0'+i/10))})
+	}
+	if g.lockedFor("usr_admin", owner) == 0 {
+		t.Fatalf("20 failures across addresses must lock the account")
+	}
+	g.unlockAccount("usr_admin")
+	if g.lockedFor("usr_admin", owner) != 0 || g.lockedFor("usr_admin", attacker) != 0 {
+		t.Fatalf("unlockAccount must lift account and account+IP locks")
+	}
+
+	// The lock ends by itself
+	for i := 0; i < loginLimitAccountIP; i++ {
+		g.recordFailure("usr_ben", attacker)
+	}
+	now = now.Add(loginLockWindow + time.Second)
+	if g.lockedFor("usr_ben", attacker) != 0 {
+		t.Fatalf("lock must expire after the window")
+	}
+
+	// Without a known client IP only the account bucket counts
+	proxied := clientIPInfo{ip: "172.18.0.2", viaProxyWithoutHeader: true}
+	for i := 0; i < 10; i++ {
+		g.recordFailure("usr_carla", proxied)
+	}
+	if g.lockedFor("usr_carla", proxied) != 0 {
+		t.Fatalf("per-IP limits must not apply when the proxy hides the client IP")
+	}
+
+	off := newLoginGuard(false)
+	for i := 0; i < 50; i++ {
+		off.recordFailure("usr_admin", attacker)
+	}
+	if off.lockedFor("usr_admin", attacker) != 0 {
+		t.Fatalf("LOGIN_PROTECTION=false must never lock")
+	}
+}
+
+func TestLoginLockedAfterThreeFailures(t *testing.T) {
+	srv, store, _ := setupTestServer(t)
+	router := srv.Router()
+	_, _ = store.CreateUser("lock@example.com", mustHash(t, "richtig123"), "Lock", "member")
+	login := func(pw, from string) *httptest.ResponseRecorder {
+		req := httptest.NewRequest("POST", "/api/v1/auth/login", strings.NewReader(`{"login":"lock@example.com","password":"`+pw+`"}`))
+		req.Header.Set("Content-Type", "application/json")
+		req.RemoteAddr = from + ":4711"
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, req)
+		return rec
+	}
+	for i := 0; i < 3; i++ {
+		if rec := login("falsch", "203.0.113.66"); rec.Code != http.StatusUnauthorized {
+			t.Fatalf("attempt %d: want 401, got %d", i+1, rec.Code)
+		}
+	}
+	rec := login("richtig123", "203.0.113.66")
+	if rec.Code != http.StatusTooManyRequests || rec.Header().Get("Retry-After") == "" || !strings.Contains(rec.Body.String(), "15 Minuten") {
+		t.Fatalf("locked login: want 429 with Retry-After, got %d %s", rec.Code, rec.Body.String())
+	}
+	if rec := login("richtig123", "198.51.100.10"); rec.Code != http.StatusOK {
+		t.Fatalf("owner from another address must still log in, got %d", rec.Code)
+	}
+}
+
+func mustHash(t *testing.T, pw string) string {
+	t.Helper()
+	h, err := auth.HashPassword(pw)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return h
+}

internal/api/password_reset.go

@@ -68,8 +68,8 @@ func (s *Server) handleResetPassword(w http.ResponseWriter, r *http.Request) {
 		writeError(w, http.StatusBadRequest, storage.ErrResetTokenInvalid.Error())
 		return
 	}
-	if len(req.Password) < 4 {
+	if err := auth.ValidatePassword(req.Password); err != nil {
-		writeError(w, http.StatusBadRequest, "Das Passwort braucht mindestens 4 Zeichen")
+		writeError(w, http.StatusBadRequest, err.Error())
 		return
 	}
 	hash, err := auth.HashPassword(req.Password)
@@ -86,6 +86,8 @@ func (s *Server) handleResetPassword(w http.ResponseWriter, r *http.Request) {
 		writeError(w, http.StatusInternalServerError, "Passwort konnte nicht gespeichert werden")
 		return
 	}
+	s.loginGuard.unlockAccount(userID)
+	s.wsHub.DisconnectUser(userID)
 	slog.Info("Passwort per E-Mail-Link zurückgesetzt", "user_id", userID)
 	writeJSON(w, http.StatusOK, map[string]bool{"ok": true})
 }

internal/api/realtime.go

@@ -9,29 +9,28 @@ import (
 	"github.com/sandrodach/mindsift/internal/auth"
 )
 
+// authenticateUserFromReq authenticates a live stream: a one-time ticket (?ticket=, browsers) or a
+// session in the Authorization header (other clients). Session tokens in the URL are not accepted any
+// more (FLAW-22), API keys never (streams carry the user's data, keys only deliver).
 func (s *Server) authenticateUserFromReq(r *http.Request) string {
-	token := r.URL.Query().Get("token")
+	if id := r.URL.Query().Get("ticket"); id != "" {
-	if token == "" {
+		tk, ok := s.streamTickets.consume(id)
+		if !ok {
+			return ""
+		}
+		u, err := s.store.GetUserByID(tk.userID)
+		if err != nil || u == nil || !u.IsActive || u.TokenVersion != tk.tokenVersion {
+			return ""
+		}
+		return u.ID
+	}
+	token := ""
 	if authHdr := r.Header.Get("Authorization"); strings.HasPrefix(authHdr, "Bearer ") {
 		token = strings.TrimPrefix(authHdr, "Bearer ")
 	}
-	}
+	if user, keyScopes := s.authenticateToken(token); user != nil && keyScopes == nil {
-	if token != "" {
-		if strings.HasPrefix(token, "mindsift_sec_") {
-			if user, err := s.store.ValidateAPIKeyAndGetUser(token); err == nil && user != nil && user.IsActive {
 		return user.ID
 	}
-		}
-		if claims, err := auth.ValidateToken(s.cfg.JWTSecret, token); err == nil && claims != nil {
-			if !s.store.IsTokenRevoked(token) {
-				if user, err := s.store.GetUserByID(claims.UserID); err == nil && user != nil && user.IsActive {
-					if claims.TokenVersion == 0 || claims.TokenVersion == user.TokenVersion {
-						return claims.UserID
-					}
-				}
-			}
-		}
-	}
 	return ""
 }
 

internal/api/realtime_test.go

@@ -62,7 +62,8 @@ func newTestUser(t *testing.T, store *storage.Store, email string) (*domain.User
 func openSSE(t *testing.T, ts *httptest.Server, token string) *sseStream {
 	t.Helper()
 	ctx, cancel := context.WithCancel(context.Background())
-	req, _ := http.NewRequestWithContext(ctx, http.MethodGet, ts.URL+"/api/v1/events?token="+token, nil)
+	req, _ := http.NewRequestWithContext(ctx, http.MethodGet, ts.URL+"/api/v1/events", nil)
+	req.Header.Set("Authorization", "Bearer "+token)
 	resp, err := http.DefaultClient.Do(req)
 	if err != nil {
 		cancel()
@@ -271,8 +272,8 @@ func TestReorderRejectsForeignTasks(t *testing.T) {
 
 func dialWS(t *testing.T, ts *httptest.Server, token string) *websocket.Conn {
 	t.Helper()
-	url := "ws" + strings.TrimPrefix(ts.URL, "http") + "/api/v1/ws?token=" + token
+	url := "ws" + strings.TrimPrefix(ts.URL, "http") + "/api/v1/ws"
-	conn, _, err := websocket.DefaultDialer.Dial(url, nil)
+	conn, _, err := websocket.DefaultDialer.Dial(url, http.Header{"Authorization": {"Bearer " + token}})
 	if err != nil {
 		t.Fatalf("dial ws: %v", err)
 	}
@@ -336,3 +337,20 @@ func TestDocChangesArePushedToTheNoteRoom(t *testing.T) {
 		t.Fatalf("no DOC_SEQ push for the note: %+v", msg)
 	}
 }
+
+func TestLogoutEndsLiveStreams(t *testing.T) {
+	srv, _, ts, owner, token := startRealtimeServer(t)
+	st := openSSE(t, ts, token)
+	srv.wsHub.DisconnectUser(owner.ID)
+	deadline := time.After(2 * time.Second)
+	for {
+		select {
+		case _, ok := <-st.events:
+			if !ok {
+				return // stream closed by the server
+			}
+		case <-deadline:
+			t.Fatal("stream still open after DisconnectUser")
+		}
+	}
+}

internal/api/server.go

@@ -1,6 +1,7 @@
 package api
 
 import (
+	"context"
 	"encoding/json"
 	"errors"
 	"io/fs"
@@ -28,6 +29,10 @@ type Server struct {
 
 	leases   *collab.LeaseManager // block leases and open sessions of notes
 	notifier *collab.Notifier     // wakes long-poll requests on note changes
+
+	demo          demoState     // periodic reset in demo mode (demo.go)
+	streamTickets streamTickets // one-time tickets for WebSocket/SSE (streamticket.go)
+	loginGuard    *loginGuard   // brute-force protection (loginguard.go)
 }
 
 func NewServer(cfg *config.Config, store *storage.Store, wsHub *ws.Hub, staticFS fs.FS) *Server {
@@ -39,13 +44,21 @@ func NewServer(cfg *config.Config, store *storage.Store, wsHub *ws.Hub, staticFS
 		leases:   collab.NewLeaseManager(nil),
 		notifier: collab.NewNotifier(),
 	}
+	srv.loginGuard = newLoginGuard(!cfg.DisableLoginProtection)
 	wsHub.SetRoomAuthorizer(srv.canJoinRoom)
+	wsHub.SetOriginCheck(srv.streamOriginAllowed)
 	// Next occurrences of repeating tasks appear live on every connected client
 	store.OnTaskCreated = func(th *domain.Thought) {
 		srv.wsHub.BroadcastToUsers(srv.taskAudience(th), "TASK_CREATED", th)
 	}
 	go srv.startAlarmTicker()
 	go srv.startCompaction()
+	if cfg.DemoMode && cfg.DemoResetMinutes > 0 {
+		go srv.startDemoResetTicker()
+	}
+	if !cfg.DemoMode {
+		go srv.startBackupScheduler()
+	}
 	return srv
 }
 
@@ -69,15 +82,22 @@ func (s *Server) taskAudience(th *domain.Thought) []string {
 func (s *Server) Router() http.Handler {
 	r := chi.NewRouter()
 
-	r.Use(middleware.RealIP)
+	r.Use(s.clientIPMiddleware)
+	r.Use(s.demoResetGate)
 	r.Use(middleware.Recoverer)
 	r.Use(s.apiLoggingMiddleware)
+	// Browsers of other sites may only call the API when no BASE_URL is set (auth runs over the
+	// Authorization header, never cookies, so credentials are not allowed either way)
+	allowedOrigins := []string{"*"}
+	if s.cfg.BaseURLSet {
+		allowedOrigins = []string{strings.TrimRight(s.cfg.BaseURL, "/")}
+	}
 	r.Use(cors.Handler(cors.Options{
-		AllowedOrigins:   []string{"*"},
+		AllowedOrigins:   allowedOrigins,
 		AllowedMethods:   []string{"GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS"},
 		AllowedHeaders:   []string{"Accept", "Authorization", "Content-Type", "X-API-Key"},
 		ExposedHeaders:   []string{"Link"},
-		AllowCredentials: true,
+		AllowCredentials: false,
 		MaxAge:           300,
 	}))
 
@@ -103,6 +123,7 @@ func (s *Server) Router() http.Handler {
 
 		r.Get("/api/v1/auth/me", s.handleMe)
 		r.Post("/api/v1/events/rooms", s.handleSSERooms)
+		r.Post("/api/v1/auth/stream-ticket", s.handleStreamTicket)
 		r.Post("/api/v1/auth/logout", s.handleLogout)
 		r.Post("/api/v1/auth/revoke-all", s.handleRevokeAllSessions)
 		r.Patch("/api/v1/auth/settings", s.handleUpdateUserSettings)
@@ -112,6 +133,9 @@ func (s *Server) Router() http.Handler {
 		r.Get("/api/v1/stats", s.handleStats)
 		r.Get("/api/v1/search", s.handleSearch)
 		r.Get("/api/v1/export", s.handleExport)
+		r.Get("/api/v1/backups", s.handleListMyBackups)
+		r.Get("/api/v1/backups/{name}", s.handleDownloadMyBackup)
+		r.Post("/api/v1/backups/{name}/restore", s.handleRestoreMyBackup)
 		r.Get("/api/v1/export/markdown", s.handleExportMarkdown)
 		r.Post("/api/v1/import/mindsift", s.handleImportMindSift)
 		r.Delete("/api/v1/user/data", s.handlePurgeOwnData)
@@ -238,6 +262,9 @@ func (s *Server) Router() http.Handler {
 		r.Group(func(r chi.Router) {
 			r.Use(s.adminMiddleware)
 			r.Get("/api/v1/admin/settings", s.handleAdminGetSettings)
+			r.Get("/api/v1/admin/backups", s.handleAdminListBackups)
+			r.Post("/api/v1/admin/backups", s.handleAdminRunBackup)
+			r.Get("/api/v1/admin/backups/{name}", s.handleAdminDownloadBackup)
 			r.Put("/api/v1/admin/settings", s.handleAdminUpdateSettings)
 			r.Get("/api/v1/admin/settings/sharing-impact", s.handleAdminSharingImpact)
 
@@ -374,34 +401,64 @@ func (s *Server) apiLoggingMiddleware(next http.Handler) http.Handler {
 
 // authenticateToken resolves a session JWT or an API key (mindsift_sec_…) to an active user. JWTs are
 // checked against the revocation list and token_version; viaAPIKey tells the caller which it was.
-func (s *Server) authenticateToken(token string) (user *domain.User, viaAPIKey bool) {
+// authenticateToken checks a session token or an API key. keyScopes is nil for sessions and the key's
+// scopes for API keys.
+func (s *Server) authenticateToken(token string) (user *domain.User, keyScopes []string) {
 	token = strings.TrimSpace(token)
 	if token == "" {
-		return nil, false
+		return nil, nil
 	}
 	if strings.HasPrefix(token, "mindsift_sec_") {
-		u, err := s.store.ValidateAPIKeyAndGetUser(token)
+		u, scopes, err := s.store.ValidateAPIKey(token)
 		if err != nil || u == nil || !u.IsActive {
-			return nil, true
+			return nil, nil
 		}
-		return u, true
+		return u, scopes
 	}
 	claims, err := auth.ValidateToken(s.cfg.JWTSecret, token)
 	if err != nil || claims == nil || s.store.IsTokenRevoked(token) {
-		return nil, false
+		return nil, nil
 	}
 	u, err := s.store.GetUserByID(claims.UserID)
 	if err != nil || u == nil || !u.IsActive {
-		return nil, false
+		return nil, nil
 	}
 	if claims.TokenVersion != 0 && claims.TokenVersion != u.TokenVersion {
-		return nil, false
+		return nil, nil
 	}
-	return u, false
+	return u, nil
 }
 
-// apiKeyAllowed: until API keys get scopes, a key has exactly one right – delivering data into MindSift
+type apiKeyScopesKey struct{}
-// (POST /api/v1/inbox; /api/v1/webhooks/ingest authenticates on its own). Everything else needs a login.
+
+// requireDeliveryScope: API keys need the scope for the target they deliver to; sessions may do all.
+// target: "inbox"/"triage", "task", "list_item".
+func requireDeliveryScope(w http.ResponseWriter, r *http.Request, target string) bool {
+	scopes, isKey := r.Context().Value(apiKeyScopesKey{}).([]string)
+	if !isKey {
+		return true
+	}
+	need := storage.ScopeTriage
+	switch target {
+	case "task":
+		need = storage.ScopeTask
+	case "list_item":
+		need = storage.ScopeList
+	case "document":
+		need = "" // notes cannot be created with a key
+	}
+	for _, sc := range scopes {
+		if need != "" && sc == need {
+			return true
+		}
+	}
+	writeError(w, http.StatusForbidden, "API-Key besitzt keine Berechtigung für diese Aktion")
+	return false
+}
+
+// apiKeyAllowed: an API key only delivers data into MindSift (POST /api/v1/inbox; /api/v1/webhooks/ingest
+// authenticates on its own); what it may deliver is decided by its scopes (requireDeliveryScope).
+// Everything else needs a login.
 func apiKeyAllowed(r *http.Request) bool {
 	return r.Method == http.MethodPost && r.URL.Path == "/api/v1/inbox"
 }
@@ -414,16 +471,20 @@ func (s *Server) authMiddleware(next http.Handler) http.Handler {
 		} else {
 			token = r.Header.Get("X-API-Key")
 		}
-		user, viaAPIKey := s.authenticateToken(token)
+		user, keyScopes := s.authenticateToken(token)
 		if user == nil {
 			writeError(w, http.StatusUnauthorized, "Nicht autorisiert – bitte anmelden")
 			return
 		}
-		if viaAPIKey && !apiKeyAllowed(r) {
+		ctx := auth.WithUserID(r.Context(), user.ID)
+		if keyScopes != nil {
+			if !apiKeyAllowed(r) {
 				writeError(w, http.StatusForbidden, "API-Keys dürfen nur Daten einliefern (POST /api/v1/inbox oder /api/v1/webhooks/ingest)")
 				return
 			}
-		next.ServeHTTP(w, r.WithContext(auth.WithUserID(r.Context(), user.ID)))
+			ctx = context.WithValue(ctx, apiKeyScopesKey{}, keyScopes)
+		}
+		next.ServeHTTP(w, r.WithContext(ctx))
 	})
 }
 

internal/api/server_test.go

@@ -796,7 +796,7 @@ func TestWebhookTriageBadgeAndIngestion(t *testing.T) {
 	_ = json.Unmarshal(rec.Body.Bytes(), &authResp)
 
 	// 2. Create API key for user
-	apiKey, err := store.CreateAPIKey(authResp.User.ID, "Home Assistant Webhook")
+	apiKey, err := store.CreateAPIKey(authResp.User.ID, "Home Assistant Webhook", nil)
 	if err != nil || apiKey == nil || apiKey.RawKey == "" {
 		t.Fatalf("failed to create API key: %v", err)
 	}
@@ -891,7 +891,8 @@ func TestSSEGlobalEndpoint(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
-	req = httptest.NewRequest(http.MethodGet, "/api/v1/events?token="+token, nil).WithContext(ctx)
+	req = httptest.NewRequest(http.MethodGet, "/api/v1/events", nil).WithContext(ctx)
+	req.Header.Set("Authorization", "Bearer "+token)
 	rec = httptest.NewRecorder()
 
 	go func() {
@@ -1147,7 +1148,8 @@ func TestTokenBlacklistingAndTokenVersionRevocation(t *testing.T) {
 	}
 
 	// Also check authenticateUserFromReq rejects token1
-	req = httptest.NewRequest(http.MethodGet, "/api/v1/ws?token="+token1, nil)
+	req = httptest.NewRequest(http.MethodGet, "/api/v1/ws", nil)
+	req.Header.Set("Authorization", "Bearer "+token1)
 	if uid := srv.authenticateUserFromReq(req); uid != "" {
 		t.Fatalf("authenticateUserFromReq should reject blacklisted token1, got uid %q", uid)
 	}
@@ -1344,7 +1346,16 @@ func TestFirstBootSetupWithSampleData(t *testing.T) {
 	defer store.Close()
 	srv := NewServer(&config.Config{Port: "8080", DatabasePath: dbPath, JWTSecret: "test-jwt-secret-key"}, store, ws.NewHub(), nil)
 
-	body := []byte(`{"email":"me@example.com","password":"secret","displayName":"Ich","createSampleData":true}`)
+	// Too short passwords are refused (FLAW-09)
+	short := httptest.NewRequest(http.MethodPost, "/api/v1/auth/setup", strings.NewReader(`{"email":"me@example.com","password":"secret"}`))
+	short.Header.Set("Content-Type", "application/json")
+	shortRec := httptest.NewRecorder()
+	srv.Router().ServeHTTP(shortRec, short)
+	if shortRec.Code != http.StatusBadRequest || !strings.Contains(shortRec.Body.String(), "mindestens 8 Zeichen") {
+		t.Fatalf("setup with 6 characters: want 400, got %d %s", shortRec.Code, shortRec.Body.String())
+	}
+
+	body := []byte(`{"email":"me@example.com","password":"secret123","displayName":"Ich","createSampleData":true}`)
 	req := httptest.NewRequest(http.MethodPost, "/api/v1/auth/setup", bytes.NewReader(body))
 	req.Header.Set("Content-Type", "application/json")
 	rec := httptest.NewRecorder()
@@ -1407,13 +1418,13 @@ func TestLegalTextsArePublic(t *testing.T) {
 	}
 }
 
-// API keys have exactly one right until scopes exist: delivering data. Revoked sessions are refused
+// API keys only deliver data, and only what their scopes allow (FLAW-07). Revoked sessions are refused
 // everywhere, the webhook ingest included.
 func TestAPIKeysOnlyDeliverData(t *testing.T) {
 	srv, store, token := setupTestServer(t)
 	router := srv.Router()
 	claims, _ := auth.ValidateToken(testJWTSecret, token)
-	key, err := store.CreateAPIKey(claims.UserID, "Home Assistant")
+	key, err := store.CreateAPIKey(claims.UserID, "Home Assistant", nil)
 	if err != nil {
 		t.Fatalf("CreateAPIKey: %v", err)
 	}
@@ -1432,8 +1443,37 @@ func TestAPIKeysOnlyDeliverData(t *testing.T) {
 	if code := do(http.MethodPost, "/api/v1/inbox", key.RawKey, `{"content":"Waschmaschine fertig"}`); code >= 300 {
 		t.Fatalf("API key must be able to post into the inbox, got %d", code)
 	}
-	if code := do(http.MethodPost, "/api/v1/inbox", key.RawKey, `{"content":"Filter wechseln","target":"task"}`); code >= 300 {
+	// Default key = triage only
-		t.Fatalf("API key must be able to create a task via the inbox, got %d", code)
+	if code := do(http.MethodPost, "/api/v1/inbox", key.RawKey, `{"content":"Filter wechseln","target":"task"}`); code != http.StatusForbidden {
+		t.Fatalf("triage-only key must not create tasks, got %d", code)
+	}
+	if code := do(http.MethodPost, "/api/v1/webhooks/ingest", key.RawKey, `{"content":"Milch","target":"list_item","listId":"x"}`); code != http.StatusForbidden {
+		t.Fatalf("triage-only key must not add list items, got %d", code)
+	}
+	full, _ := store.CreateAPIKey(claims.UserID, "Alles", []string{"webhook:task", "webhook:list"})
+	if code := do(http.MethodPost, "/api/v1/webhooks/ingest", full.RawKey, `{"title":"Filter wechseln","target":"task","priority":"high"}`); code != http.StatusCreated {
+		t.Fatalf("task scope must create a task, got %d", code)
+	}
+	if code := do(http.MethodPost, "/api/v1/webhooks/ingest", full.RawKey, `{"content":"Rauchmelder"}`); code != http.StatusForbidden {
+		t.Fatalf("key without triage scope must not fill the inbox, got %d", code)
+	}
+	list, _ := store.CreateList(claims.UserID, "Einkauf", "", "shopping")
+	if code := do(http.MethodPost, "/api/v1/webhooks/ingest", full.RawKey, `{"content":"Milch","target":"list_item","listId":"`+list.ID+`","quantity":"2"}`); code != http.StatusCreated {
+		t.Fatalf("list scope must add the item, got %d", code)
+	}
+	if items, _ := store.GetListItems(list.ID); len(items) != 1 || items[0].Quantity != "2" {
+		t.Fatalf("list item not stored: %+v", items)
+	}
+	other, _ := store.CreateUser("other@example.com", "hash", "Other", "member")
+	foreign, _ := store.CreateList(other.ID, "Fremd", "", "shopping")
+	if code := do(http.MethodPost, "/api/v1/webhooks/ingest", full.RawKey, `{"content":"Spam","target":"list_item","listId":"`+foreign.ID+`"}`); code != http.StatusNotFound {
+		t.Fatalf("key must not write into lists its owner cannot see, got %d", code)
+	}
+	// Keys never open live streams (those carry the user's data)
+	streamReq := httptest.NewRequest(http.MethodGet, "/api/v1/events", nil)
+	streamReq.Header.Set("Authorization", "Bearer "+full.RawKey)
+	if uid := srv.authenticateUserFromReq(streamReq); uid != "" {
+		t.Fatalf("API key must not authenticate a live stream")
 	}
 	if code := do(http.MethodGet, "/api/v1/documents", key.RawKey, ""); code != http.StatusForbidden {
 		t.Fatalf("API key must not read notes, got %d", code)

internal/api/streamticket.go

@@ -0,0 +1,97 @@
+package api
+
+import (
+	"crypto/rand"
+	"encoding/hex"
+	"net/http"
+	"net/url"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/sandrodach/mindsift/internal/auth"
+)
+
+// WebSocket and EventSource cannot send an Authorization header, so the browser used to put its
+// 30-day session token into the URL, where it ends up in proxy and access logs (FLAW-22). Instead the
+// app now asks for a stream ticket (POST /auth/stream-ticket, with the normal header) right before it
+// connects and passes that: random, valid for 60 seconds, usable once, bound to the session's token
+// version. A ticket in a log is worthless.
+
+const streamTicketTTL = 60 * time.Second
+
+type streamTicket struct {
+	userID       string
+	tokenVersion int
+	expires      time.Time
+}
+
+type streamTickets struct {
+	mu      sync.Mutex
+	tickets map[string]streamTicket
+}
+
+func (t *streamTickets) issue(userID string, tokenVersion int) (string, error) {
+	buf := make([]byte, 24)
+	if _, err := rand.Read(buf); err != nil {
+		return "", err
+	}
+	id := hex.EncodeToString(buf)
+	now := time.Now()
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	if t.tickets == nil {
+		t.tickets = map[string]streamTicket{}
+	}
+	for k, v := range t.tickets {
+		if now.After(v.expires) {
+			delete(t.tickets, k)
+		}
+	}
+	t.tickets[id] = streamTicket{userID: userID, tokenVersion: tokenVersion, expires: now.Add(streamTicketTTL)}
+	return id, nil
+}
+
+// consume returns the ticket and removes it; ok is false for unknown or expired tickets.
+func (t *streamTickets) consume(id string) (streamTicket, bool) {
+	t.mu.Lock()
+	defer t.mu.Unlock()
+	tk, ok := t.tickets[id]
+	delete(t.tickets, id)
+	if !ok || time.Now().After(tk.expires) {
+		return streamTicket{}, false
+	}
+	return tk, true
+}
+
+func (s *Server) handleStreamTicket(w http.ResponseWriter, r *http.Request) {
+	user, err := s.store.GetUserByID(auth.GetUserID(r.Context()))
+	if err != nil || user == nil {
+		writeError(w, http.StatusUnauthorized, "Nicht autorisiert")
+		return
+	}
+	ticket, err := s.streamTickets.issue(user.ID, user.TokenVersion)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, "Ticket konnte nicht erstellt werden")
+		return
+	}
+	writeJSON(w, http.StatusOK, map[string]interface{}{"ticket": ticket, "expiresIn": int(streamTicketTTL.Seconds())})
+}
+
+// streamOriginAllowed: with BASE_URL set, browsers may open WebSockets only from that address or the
+// requested host itself. Requests without Origin (non-browser clients) pass; they need a ticket anyway.
+func (s *Server) streamOriginAllowed(r *http.Request) bool {
+	origin := r.Header.Get("Origin")
+	if origin == "" || !s.cfg.BaseURLSet {
+		return true
+	}
+	o, err := url.Parse(origin)
+	if err != nil {
+		return false
+	}
+	if strings.EqualFold(o.Host, r.Host) {
+		return true
+	}
+	base, err := url.Parse(s.cfg.BaseURL)
+	return err == nil && strings.EqualFold(o.Host, base.Host)
+}

internal/api/streamticket_test.go

@@ -0,0 +1,73 @@
+package api
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/sandrodach/mindsift/internal/config"
+)
+
+func TestStreamTicketsReplaceTokensInURLs(t *testing.T) {
+	srv, store, token := setupTestServer(t)
+	router := srv.Router()
+	ticket := func(tok string) string {
+		req := httptest.NewRequest(http.MethodPost, "/api/v1/auth/stream-ticket", nil)
+		req.Header.Set("Authorization", "Bearer "+tok)
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, req)
+		var out struct{ Ticket string }
+		_ = json.Unmarshal(rec.Body.Bytes(), &out)
+		return out.Ticket
+	}
+	stream := func(query string) string {
+		return srv.authenticateUserFromReq(httptest.NewRequest(http.MethodGet, "/api/v1/events?"+query, nil))
+	}
+
+	tk := ticket(token)
+	if tk == "" {
+		t.Fatal("no ticket issued")
+	}
+	if stream("ticket="+tk) == "" {
+		t.Fatal("a fresh ticket must open the stream")
+	}
+	if stream("ticket="+tk) != "" {
+		t.Fatal("a ticket works only once")
+	}
+	if stream("token="+token) != "" {
+		t.Fatal("session tokens in the URL are no longer accepted")
+	}
+
+	// Ending all sessions makes unused tickets worthless as well
+	tk = ticket(token)
+	uid := stream("ticket=" + ticket(token))
+	_ = store.RevokeAllUserTokens(uid)
+	if stream("ticket="+tk) != "" {
+		t.Fatal("ticket from before 'all sessions ended' must be refused")
+	}
+}
+
+func TestStreamOriginCheck(t *testing.T) {
+	srv := &Server{cfg: &config.Config{BaseURL: "https://notes.example.com", BaseURLSet: true}}
+	check := func(host, origin string) bool {
+		r := httptest.NewRequest(http.MethodGet, "/api/v1/ws", nil)
+		r.Host = host
+		if origin != "" {
+			r.Header.Set("Origin", origin)
+		}
+		return srv.streamOriginAllowed(r)
+	}
+	if !check("mindsift:8080", "https://notes.example.com") {
+		t.Error("BASE_URL origin must pass even if the proxy rewrote Host")
+	}
+	if !check("notes.example.com", "https://notes.example.com") {
+		t.Error("same host must pass")
+	}
+	if check("notes.example.com", "https://evil.example.org") {
+		t.Error("foreign origin must be refused")
+	}
+	if !check("notes.example.com", "") {
+		t.Error("non-browser clients without Origin pass (they still need a ticket)")
+	}
+}

internal/auth/auth.go

@@ -7,7 +7,9 @@ import (
 	"encoding/hex"
 	"errors"
 	"fmt"
+	"strings"
 	"time"
+	"unicode/utf8"
 
 	"github.com/golang-jwt/jwt/v5"
 	"golang.org/x/crypto/bcrypt"
@@ -25,6 +27,27 @@ type Claims struct {
 	jwt.RegisteredClaims
 }
 
+// MinPasswordLength applies wherever a password is set (setup, registration, profile, admin, reset).
+// Existing shorter passwords keep working for login.
+const MinPasswordLength = 8
+
+var (
+	ErrPasswordTooShort = fmt.Errorf("Das Passwort muss mindestens %d Zeichen lang sein", MinPasswordLength)
+	// bcrypt only uses the first 72 bytes and rejects longer input
+	ErrPasswordTooLong = errors.New("Das Passwort darf höchstens 72 Bytes lang sein")
+)
+
+// ValidatePassword checks a new password: at least MinPasswordLength characters, not only whitespace.
+func ValidatePassword(password string) error {
+	if strings.TrimSpace(password) == "" || utf8.RuneCountInString(password) < MinPasswordLength {
+		return ErrPasswordTooShort
+	}
+	if len(password) > 72 {
+		return ErrPasswordTooLong
+	}
+	return nil
+}
+
 func HashPassword(password string) (string, error) {
 	bytes, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
 	return string(bytes), err

internal/auth/auth_test.go

@@ -0,0 +1,22 @@
+package auth
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestValidatePassword(t *testing.T) {
+	cases := map[string]error{
+		"geheim12":              nil,
+		"äöüßäöüß":              nil, // counts characters, not bytes
+		"kurz":                  ErrPasswordTooShort,
+		"        ":              ErrPasswordTooShort,
+		strings.Repeat("a", 73): ErrPasswordTooLong,
+		"leer zeichen sind ok":  nil,
+	}
+	for pw, want := range cases {
+		if got := ValidatePassword(pw); got != want {
+			t.Errorf("ValidatePassword(%q) = %v, want %v", pw, got, want)
+		}
+	}
+}

internal/config/config.go

@@ -6,6 +6,7 @@ import (
 	"log/slog"
 	"os"
 	"path/filepath"
+	"strconv"
 	"strings"
 )
 
@@ -22,6 +23,13 @@ type Config struct {
 	LogLevel          string
 	Debug             bool
 	DemoMode          bool
+	// DemoResetMinutes: in demo mode the database is reset to the sample data this often (0 = never)
+	DemoResetMinutes int
+	// TrustedProxies: whose X-Forwarded-For/X-Real-IP is believed ("private", "all", "none" or CIDRs)
+	TrustedProxies string
+	// DisableLoginProtection: LOGIN_PROTECTION=false switches off locking logins after repeated
+	// failures (the zero value keeps it on)
+	DisableLoginProtection bool
 
 	// Optional SMTP environment variables (can also be overridden/configured in DB system_settings)
 	SMTPHost string
@@ -161,6 +169,9 @@ func Load() *Config {
 		LogLevel:               logLevel,
 		Debug:                  debug,
 		DemoMode:               demoMode,
+		DemoResetMinutes:       demoResetMinutes(),
+		TrustedProxies:         getEnv("TRUSTED_PROXIES", "private"),
+		DisableLoginProtection: strings.ToLower(getEnv("LOGIN_PROTECTION", "true")) == "false",
 		SMTPHost:               smtpHost,
 		SMTPPort:               smtpPort,
 		SMTPUser:               smtpUser,
@@ -197,3 +208,11 @@ func getEnv(key, fallback string) string {
 	}
 	return fallback
 }
+
+func demoResetMinutes() int {
+	n, err := strconv.Atoi(strings.TrimSpace(getEnv("DEMO_RESET_MINUTES", "20")))
+	if err != nil || n < 0 {
+		return 20
+	}
+	return n
+}

internal/domain/models.go

@@ -292,6 +292,10 @@ type SystemSettings struct {
 	// metadata stay blocked
 	AllowPrivateWebhooks bool `json:"allowPrivateWebhooks"`
 	SMTPConfiguredViaEnv bool `json:"smtpConfiguredViaEnv,omitempty"`
+	// Automatic backups: on/off, daily time (HH:MM, server time zone) and how many days to keep them
+	BackupEnabled       bool   `json:"backupEnabled"`
+	BackupTime          string `json:"backupTime"`
+	BackupRetentionDays int    `json:"backupRetentionDays"`
 }
 
 // UnmarshalJSON accepts smtpPort as text or number: older clients sent a number, which made the whole
@@ -520,6 +524,7 @@ type DashboardStats struct {
 	DocsCount          int `json:"docsCount"`
 	DocsTodosOpenCount int `json:"docsTodosOpenCount"`
 	ListsCount         int `json:"listsCount"`
+	ListItemsOpenCount int `json:"listItemsOpenCount"` // unchecked items in all lists the user sees
 	DiscardedCount     int `json:"discardedCount"`
 }
 
@@ -531,6 +536,7 @@ type FullExport struct {
 	Documents  []Document   `json:"documents"`
 	Lists      []SharedList `json:"lists"`
 	TaskLists  []TaskList   `json:"taskLists,omitempty"`
+	Themes     []UserTheme  `json:"themes,omitempty"`
 }
 
 type SharedFolder struct {

internal/storage/account.go

@@ -3,37 +3,72 @@ package storage
 import (
 	"errors"
 	"fmt"
+	"strings"
 )
 
 // ErrLastAdmin protects the server from losing its last administrator.
 var ErrLastAdmin = errors.New("Der letzte Server-Administrator kann nicht gelöscht werden. Bitte ernenne vorher ein anderes Konto zum Administrator.")
 
-// PurgeUserData deletes everything the user owns – thoughts and tasks, notes (with blocks, history and
+// Sections of a user's data, for restoring only part of a backup.
-// shares), folders, shared folders, task lists and lists – in one transaction. The account, its
+const (
-// settings, themes, API keys and group memberships stay. Other people's tasks in the user's task lists
+	SectionNotes  = "notes"  // notes, folders, shared folders, pins, tag pages
-// become their own personal tasks, as when a single list is deleted.
+	SectionTasks  = "tasks"  // task lists and tasks
-func (s *Store) PurgeUserData(userID string) error {
+	SectionLists  = "lists"  // shopping and other lists
-	tx, err := s.db.Begin()
+	SectionInbox  = "inbox"  // thoughts in the inbox (and the discarded ones)
-	if err != nil {
+	SectionThemes = "themes" // own CSS themes
-		return err
+)
-	}
-	defer tx.Rollback()
 
+// AllSections in a fixed order.
+var AllSections = []string{SectionNotes, SectionTasks, SectionLists, SectionInbox, SectionThemes}
+
+// NormalizeSections keeps known sections; an empty selection means all of them.
+func NormalizeSections(sections []string) map[string]bool {
+	out := map[string]bool{}
+	for _, sec := range sections {
+		sec = strings.ToLower(strings.TrimSpace(sec))
+		for _, known := range AllSections {
+			if sec == known {
+				out[sec] = true
+			}
+		}
+	}
+	if len(out) == 0 {
+		for _, sec := range AllSections {
+			out[sec] = true
+		}
+	}
+	return out
+}
+
+// purgeStmts lists what deleting one section of a user's data takes. Each statement gets the user ID
+// as often as it has placeholders.
+func purgeStmts(section string) []struct {
+	q    string
+	args int
+} {
 	ownDocs := `(SELECT id FROM documents WHERE user_id = ?)`
 	ownTaskLists := `(SELECT id FROM task_lists WHERE user_id = ?)`
 	ownFolders := `(SELECT id FROM workspace_shared_folders WHERE owner_id = ?)`
-	stmts := []struct {
+	type st = struct {
 		q    string
-		args int // how many times userID is passed
+		args int
-	}{
+	}
+	switch section {
+	case SectionTasks:
+		return []st{
 			// Task lists: keep the tasks of others, drop shares and the lists
 			{`UPDATE thoughts SET task_list_id = '' WHERE task_list_id IN ` + ownTaskLists + ` AND user_id != ?`, 2},
 			{`DELETE FROM task_list_shares WHERE task_list_id IN ` + ownTaskLists, 1},
 			{`DELETE FROM task_lists WHERE user_id = ?`, 1},
+			{`DELETE FROM thoughts WHERE user_id = ? AND (status = 'kept' OR (status = 'converted' AND converted_type IN ('task', 'document_block')))`, 1},
+		}
+	case SectionInbox:
+		return []st{{`DELETE FROM thoughts WHERE user_id = ? AND status IN ('inbox', 'discarded')`, 1}}
+	case SectionNotes:
+		return []st{
 			// Tasks of others linked to blocks of the user's notes lose the link
 			{`UPDATE thoughts SET converted_type = '', converted_ref_id = '' WHERE converted_type = 'document_block'
 			  AND substr(converted_ref_id, 1, instr(converted_ref_id, ':') - 1) IN ` + ownDocs, 1},
-		{`DELETE FROM thoughts WHERE user_id = ?`, 1},
 			// Shared folders owned by the user
 			{`UPDATE documents SET shared_folder_id = '', sub_folder_path = '' WHERE shared_folder_id IN ` + ownFolders, 1},
 			{`DELETE FROM workspace_folder_mounts WHERE folder_id IN ` + ownFolders, 1},
@@ -52,26 +87,53 @@ func (s *Store) PurgeUserData(userID string) error {
 			{`DELETE FROM doc_pins WHERE user_id = ?`, 1},
 			{`DELETE FROM workspace_folders WHERE user_id = ?`, 1},
 			{`DELETE FROM tag_pages WHERE user_id = ?`, 1},
-		// Lists (items cascade)
-		{`DELETE FROM list_shares WHERE list_id IN (SELECT id FROM lists WHERE user_id = ?)`, 1},
-		{`DELETE FROM lists WHERE user_id = ?`, 1},
 		}
-	for _, st := range stmts {
+	case SectionLists:
+		return []st{
+			{`DELETE FROM list_shares WHERE list_id IN (SELECT id FROM lists WHERE user_id = ?)`, 1},
+			{`DELETE FROM lists WHERE user_id = ?`, 1}, // items cascade
+		}
+	case SectionThemes:
+		return []st{{`DELETE FROM user_themes WHERE user_id = ?`, 1}}
+	}
+	return nil
+}
+
+// PurgeUserSections deletes the chosen sections of the user's own data in one transaction. Content of
+// others shared with the user stays; other people's tasks in the user's task lists become their own
+// personal tasks, as when a single list is deleted.
+func (s *Store) PurgeUserSections(userID string, sections map[string]bool) error {
+	var stmts []sqlStmt
+	for _, sec := range AllSections {
+		if !sections[sec] {
+			continue
+		}
+		for _, st := range purgeStmts(sec) {
 			args := make([]interface{}, st.args)
 			for i := range args {
 				args[i] = userID
 			}
-		if _, err := tx.Exec(st.q, args...); err != nil {
+			stmts = append(stmts, stmt(st.q, args...))
+		}
+	}
+	if sections[SectionTasks] && sections[SectionInbox] {
+		// Everything else of the thought history (turned into notes or list items) goes as well
+		stmts = append(stmts, stmt(`DELETE FROM thoughts WHERE user_id = ?`, userID))
+	}
+	if err := s.execInTx(stmts...); err != nil {
 		return fmt.Errorf("Daten löschen: %w", err)
 	}
-	}
-	if err := tx.Commit(); err != nil {
-		return err
-	}
 	s.PruneTaskAssignees()
 	return nil
 }
 
+// PurgeUserData deletes everything the user owns – thoughts and tasks, notes (with blocks, history and
+// shares), folders, shared folders, task lists and lists. The account, its settings, themes, API keys
+// and group memberships stay.
+func (s *Store) PurgeUserData(userID string) error {
+	return s.PurgeUserSections(userID, map[string]bool{SectionNotes: true, SectionTasks: true, SectionLists: true, SectionInbox: true})
+}
+
 // IsLastAdmin reports whether userID is an administrator and no other one exists.
 func (s *Store) IsLastAdmin(userID string) bool {
 	var role string

internal/storage/apikeys.go

@@ -10,7 +10,32 @@ import (
 
 // --- API KEYS & WEBHOOKS ---
 
-func (s *Store) CreateAPIKey(userID, name string) (*domain.APIKey, error) {
+// Scopes of an API key: what it may deliver. A key never reads data.
+const (
+	ScopeTriage = "webhook:triage" // thoughts into the inbox
+	ScopeTask   = "webhook:task"   // tasks directly
+	ScopeList   = "webhook:list"   // items into lists
+)
+
+// NormalizeScopes keeps the known scopes in a fixed order; none at all means triage only.
+func NormalizeScopes(scopes []string) []string {
+	want := map[string]bool{}
+	for _, sc := range scopes {
+		want[strings.ToLower(strings.TrimSpace(sc))] = true
+	}
+	out := []string{}
+	for _, sc := range []string{ScopeTriage, ScopeTask, ScopeList} {
+		if want[sc] {
+			out = append(out, sc)
+		}
+	}
+	if len(out) == 0 {
+		out = []string{ScopeTriage}
+	}
+	return out
+}
+
+func (s *Store) CreateAPIKey(userID, name string, scopes []string) (*domain.APIKey, error) {
 	if strings.TrimSpace(name) == "" {
 		name = "Smarthome / Webhook Key"
 	}
@@ -22,7 +47,7 @@ func (s *Store) CreateAPIKey(userID, name string) (*domain.APIKey, error) {
 		KeyPrefix: prefix,
 		KeyHash:   hash,
 		RawKey:    rawKey,
-		Scopes:    "ingest,read",
+		Scopes:    strings.Join(NormalizeScopes(scopes), ","),
 		CreatedAt: domain.NowISO(),
 	}
 
@@ -64,12 +89,19 @@ func (s *Store) DeleteAPIKey(userID, keyID string) error {
 }
 
 func (s *Store) ValidateAPIKeyAndGetUser(rawKey string) (*domain.User, error) {
+	u, _, err := s.ValidateAPIKey(rawKey)
+	return u, err
+}
+
+// ValidateAPIKey returns the owner of a key and the key's scopes.
+func (s *Store) ValidateAPIKey(rawKey string) (*domain.User, []string, error) {
 	hash := auth.HashAPIKey(strings.TrimSpace(rawKey))
-	var keyID, userID string
+	var keyID, userID, scopes string
-	err := s.db.QueryRow(`SELECT id, user_id FROM api_keys WHERE key_hash = ?`, hash).Scan(&keyID, &userID)
+	err := s.db.QueryRow(`SELECT id, user_id, scopes FROM api_keys WHERE key_hash = ?`, hash).Scan(&keyID, &userID, &scopes)
 	if err != nil {
-		return nil, errors.New("invalid API key")
+		return nil, nil, errors.New("invalid API key")
 	}
 	_, _ = s.db.Exec(`UPDATE api_keys SET last_used_at = ? WHERE id = ?`, domain.NowISO(), keyID)
-	return s.GetUserByID(userID)
+	u, err := s.GetUserByID(userID)
+	return u, NormalizeScopes(strings.Split(scopes, ",")), err
 }

internal/storage/backup.go

@@ -0,0 +1,167 @@
+package storage
+
+import (
+	"compress/gzip"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"regexp"
+	"sort"
+	"strings"
+	"time"
+)
+
+// Automatic backups below $DATA_DIR/backups/:
+//   system/mindsift-db-YYYY-MM-DD-HHMM.db.gz        the whole database (VACUUM INTO, consistent while
+//                                                     others write), for the admin
+//   users/<user id>/mindsift-backup-YYYY-MM-DD-HHMM.zip   the same ZIP as "Backup herunterladen"
+// Files older than the retention are deleted after each run. Backups next to the database protect
+// against mistakes, not against a broken disk; copy the folder elsewhere as well.
+
+const (
+	DefaultBackupTime          = "03:00"
+	DefaultBackupRetentionDays = 3
+)
+
+var (
+	backupTimeRe   = regexp.MustCompile(`^([01]\d|2[0-3]):[0-5]\d$`)
+	backupNameRe   = regexp.MustCompile(`^mindsift-(db|backup)-\d{4}-\d{2}-\d{2}-\d{4}\.(db\.gz|zip)$`)
+	ErrBackupName  = errors.New("Unbekannte Sicherung")
+	backupStampFmt = "2006-01-02-1504"
+)
+
+func validBackupTime(v string) bool { return backupTimeRe.MatchString(v) }
+
+// BackupFile is one entry of a backup listing.
+type BackupFile struct {
+	Name      string `json:"name"`
+	Size      int64  `json:"size"`
+	CreatedAt string `json:"createdAt"`
+}
+
+// BackupPath returns the file of a backup in dir, refusing anything that is not one of our names
+// (no path tricks through the API).
+func BackupPath(dir, name string) (string, error) {
+	if !backupNameRe.MatchString(name) {
+		return "", ErrBackupName
+	}
+	p := filepath.Join(dir, name)
+	if _, err := os.Stat(p); err != nil {
+		return "", ErrBackupName
+	}
+	return p, nil
+}
+
+// ListBackups lists the backups in dir, newest first.
+func ListBackups(dir string) ([]BackupFile, error) {
+	entries, err := os.ReadDir(dir)
+	if errors.Is(err, os.ErrNotExist) {
+		return []BackupFile{}, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	out := []BackupFile{}
+	for _, e := range entries {
+		if e.IsDir() || !backupNameRe.MatchString(e.Name()) {
+			continue
+		}
+		info, err := e.Info()
+		if err != nil {
+			continue
+		}
+		out = append(out, BackupFile{Name: e.Name(), Size: info.Size(), CreatedAt: info.ModTime().UTC().Format(time.RFC3339)})
+	}
+	sort.Slice(out, func(i, j int) bool { return out[i].Name > out[j].Name })
+	return out, nil
+}
+
+// PruneBackups deletes backups in dir older than keepDays.
+func PruneBackups(dir string, keepDays int, now time.Time) error {
+	files, err := ListBackups(dir)
+	if err != nil {
+		return err
+	}
+	cutoff := now.Add(-time.Duration(keepDays) * 24 * time.Hour)
+	for _, f := range files {
+		created, err := time.Parse(time.RFC3339, f.CreatedAt)
+		if err == nil && created.Before(cutoff) {
+			if err := os.Remove(filepath.Join(dir, f.Name)); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// WriteSystemSnapshot writes a gzip-compressed copy of the whole database into dir.
+func (s *Store) WriteSystemSnapshot(dir string, now time.Time) (string, error) {
+	if err := os.MkdirAll(dir, 0o700); err != nil {
+		return "", err
+	}
+	name := "mindsift-db-" + now.Format(backupStampFmt) + ".db.gz"
+	tmp := filepath.Join(dir, ".tmp-"+now.Format("20060102150405.000000")+".db")
+	defer os.Remove(tmp)
+	if _, err := s.db.Exec(`VACUUM INTO ?`, tmp); err != nil {
+		return "", fmt.Errorf("Datenbank-Abzug: %w", err)
+	}
+	if err := gzipFile(tmp, filepath.Join(dir, name)); err != nil {
+		return "", err
+	}
+	return name, nil
+}
+
+// WriteUserBackup writes the user's MindSift backup (ZIP with the JSON export) into dir.
+func (s *Store) WriteUserBackup(userID, dir string, now time.Time) (string, error) {
+	if err := os.MkdirAll(dir, 0o700); err != nil {
+		return "", err
+	}
+	exp, err := s.ExportUserData(userID)
+	if err != nil {
+		return "", err
+	}
+	name := "mindsift-backup-" + now.Format(backupStampFmt) + ".zip"
+	return name, writeFileAtomically(filepath.Join(dir, name), func(w io.Writer) error { return WriteBackupZip(exp, w) })
+}
+
+func gzipFile(src, dst string) error {
+	in, err := os.Open(src)
+	if err != nil {
+		return err
+	}
+	defer in.Close()
+	return writeFileAtomically(dst, func(w io.Writer) error {
+		gz := gzip.NewWriter(w)
+		if _, err := io.Copy(gz, in); err != nil {
+			return err
+		}
+		return gz.Close()
+	})
+}
+
+// writeFileAtomically writes to a temporary file and renames it, so a half-written backup never
+// shows up in the list.
+func writeFileAtomically(dst string, write func(io.Writer) error) error {
+	tmp := dst + ".part"
+	f, err := os.OpenFile(tmp, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, 0o600)
+	if err != nil {
+		return err
+	}
+	if err := write(f); err != nil {
+		f.Close()
+		os.Remove(tmp)
+		return err
+	}
+	if err := f.Close(); err != nil {
+		os.Remove(tmp)
+		return err
+	}
+	return os.Rename(tmp, dst)
+}
+
+// UserBackupDir is the backup folder of one user below root; user IDs are generated by MindSift.
+func UserBackupDir(root, userID string) string {
+	return filepath.Join(root, "users", strings.ReplaceAll(filepath.Base(userID), "..", ""))
+}

internal/storage/concurrency_test.go

@@ -0,0 +1,95 @@
+package storage
+
+import (
+	"fmt"
+	"path/filepath"
+	"sync"
+	"testing"
+
+	"github.com/sandrodach/mindsift/internal/domain"
+)
+
+// Many writers at once on one SQLite file (FLAW-23): transactions that read before they write must
+// wait for the write lock instead of failing with SQLITE_BUSY.
+func TestConcurrentWritersDoNotFail(t *testing.T) {
+	store, err := NewStore(filepath.Join(t.TempDir(), "load.db"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer store.Close()
+	u, _ := store.CreateUser("load@example.com", "hash", "Last", "member")
+	tl, _ := store.CreateTaskList(u.ID, "", "", "Last", "", "")
+	var ids []string
+	for i := 0; i < 20; i++ {
+		th, _ := store.CreateThoughtWithDetails(u.ID, fmt.Sprintf("Aufgabe %d", i), "normal", "manual", "", tl.ID, "todo", "")
+		_, _ = store.UpdateThoughtTriage(u.ID, th.ID, "keep", "task", "", "", tl.ID)
+		ids = append(ids, th.ID)
+	}
+
+	var wg sync.WaitGroup
+	errs := make(chan error, 400)
+	for w := 0; w < 16; w++ {
+		wg.Add(1)
+		go func(w int) {
+			defer wg.Done()
+			for i := 0; i < 15; i++ {
+				status := "todo"
+				if (w+i)%2 == 0 {
+					status = "done"
+				}
+				items := []domain.ThoughtReorderItem{{ID: ids[(w+i)%len(ids)], SortOrder: i, KanbanStatus: &status}}
+				if err := store.ReorderTasks(tl.ID, items); err != nil {
+					errs <- fmt.Errorf("reorder: %w", err)
+				}
+				if _, err := store.CreateThought(u.ID, fmt.Sprintf("Gedanke %d-%d", w, i), "normal", "manual", ""); err != nil {
+					errs <- fmt.Errorf("create: %w", err)
+				}
+			}
+		}(w)
+	}
+	wg.Wait()
+	close(errs)
+	failed := 0
+	for err := range errs {
+		if failed < 3 {
+			t.Error(err)
+		}
+		failed++
+	}
+	if failed > 0 {
+		t.Fatalf("%d of %d writes failed", failed, 16*15*2)
+	}
+}
+
+func TestMultiStepChangesAreAllOrNothing(t *testing.T) {
+	store, err := NewStore(filepath.Join(t.TempDir(), "atomic.db"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer store.Close()
+	anna, _ := store.CreateUser("anna@example.com", "hash", "Anna", "member")
+	eve, _ := store.CreateUser("eve@example.com", "hash", "Eve", "member")
+	tl, _ := store.CreateTaskList(anna.ID, "", "", "Haushalt", "", "")
+	task, _ := store.CreateThoughtWithDetails(anna.ID, "Fenster", "normal", "manual", "", tl.ID, "todo", "")
+	_, _ = store.UpdateThoughtTriage(anna.ID, task.ID, "keep", "task", "", "", tl.ID)
+
+	// A stranger deleting the list must not empty it (it used to unlink all tasks before checking)
+	if err := store.DeleteTaskList(eve.ID, tl.ID); err == nil {
+		t.Fatal("foreign user must not delete the task list")
+	}
+	if got, _ := store.GetThoughtByID(anna.ID, task.ID); got.TaskListID != tl.ID {
+		t.Fatalf("task was taken out of the list by a stranger")
+	}
+
+	// A failing step rolls back the earlier ones
+	err = store.execInTx(
+		stmt(`UPDATE thoughts SET content = 'geändert' WHERE id = ?`, task.ID),
+		stmt(`UPDATE gibt_es_nicht SET x = 1`),
+	)
+	if err == nil {
+		t.Fatal("expected an error from the second statement")
+	}
+	if got, _ := store.GetThoughtByID(anna.ID, task.ID); got.Content != "Fenster" {
+		t.Fatalf("first step must be rolled back, content is %q", got.Content)
+	}
+}

internal/storage/docsync.go

@@ -72,7 +72,7 @@ type docQueryer interface {
 }
 
 // migrateDocSync adds the columns and tables of the collaboration model and converts old flat block lists.
-func (s *Store) migrateDocSync() {
+func (s *Store) migrateDocSync() error {
 	stmts := []string{
 		"ALTER TABLE blocks ADD COLUMN parent_id TEXT NOT NULL DEFAULT '';",
 		"ALTER TABLE blocks ADD COLUMN order_key TEXT NOT NULL DEFAULT '';",
@@ -110,15 +110,16 @@ func (s *Store) migrateDocSync() {
 		"CREATE INDEX IF NOT EXISTS idx_doc_op_results_created ON doc_op_results(created_at);",
 	}
 	for _, q := range stmts {
-		if _, err := s.db.Exec(q); err != nil && !strings.Contains(err.Error(), "duplicate column") {
+		if err := s.execSchemaStatement(q); err != nil {
-			slog.Error("Migration der Notiz-Synchronisation fehlgeschlagen", "error", err, "statement", q)
+			return err
 		}
 	}
 	// Tombstones from before deleted_at existed start their retention now
 	if _, err := s.db.Exec(`UPDATE blocks SET deleted_at = ? WHERE deleted = 1 AND deleted_at = ''`, domain.NowISO()); err != nil {
-		slog.Error("Migration der Notiz-Synchronisation fehlgeschlagen", "error", err)
+		return err
 	}
 	s.backfillBlockTree()
+	return nil
 }
 
 // backfillBlockTree converts blocks stored as a flat list (level + position) into parent_id + order_key.

internal/storage/documents.go

@@ -630,16 +630,15 @@ func (s *Store) UpdateDocument(userID, docID string, title, icon, folderPath *st
 
 	if isPinned != nil {
 		doc.IsPinned = *isPinned
+		pin := []sqlStmt{stmt(`DELETE FROM doc_pins WHERE user_id = ? AND doc_id = ?`, userID, docID)}
 		if *isPinned {
-			_, _ = s.db.Exec(`INSERT OR IGNORE INTO doc_pins (user_id, doc_id, created_at) VALUES (?, ?, ?)`, userID, docID, domain.NowISO())
+			pin = []sqlStmt{stmt(`INSERT OR IGNORE INTO doc_pins (user_id, doc_id, created_at) VALUES (?, ?, ?)`, userID, docID, domain.NowISO())}
-			if doc.IsOwner {
-				_, _ = s.db.Exec(`UPDATE documents SET is_pinned = 1 WHERE id = ?`, docID)
 		}
-		} else {
-			_, _ = s.db.Exec(`DELETE FROM doc_pins WHERE user_id = ? AND doc_id = ?`, userID, docID)
 		if doc.IsOwner {
-				_, _ = s.db.Exec(`UPDATE documents SET is_pinned = 0 WHERE id = ?`, docID)
+			pin = append(pin, stmt(`UPDATE documents SET is_pinned = ? WHERE id = ?`, boolInt(*isPinned), docID))
 		}
+		if err := s.execInTx(pin...); err != nil {
+			return nil, err
 		}
 	}
 
@@ -678,7 +677,9 @@ func (s *Store) DeleteDocument(userID, docID string) error {
 	}
 	if !doc.IsOwner {
 		// Collaborator removing their shared access
-		_, _ = s.db.Exec(`DELETE FROM doc_user_folders WHERE user_id = ? AND doc_id = ?`, userID, docID)
+		if _, err := s.db.Exec(`DELETE FROM doc_user_folders WHERE user_id = ? AND doc_id = ?`, userID, docID); err != nil {
+			return err
+		}
 		return s.DeleteDocShare(userID, docID, userID)
 	}
 	if doc.IsArchived {

internal/storage/folders.go

@@ -105,15 +105,19 @@ func (s *Store) CreateFolder(userID, folderPath string) (string, error) {
 		var existsID string
 		err := s.db.QueryRow(`SELECT id FROM workspace_folders WHERE shared_folder_id = ? AND sub_path = ?`, sfID, subPath).Scan(&existsID)
 		if err == sql.ErrNoRows {
-			_, _ = s.db.Exec(`INSERT INTO workspace_folders (id, user_id, shared_folder_id, path, sub_path, created_at) VALUES (?, ?, ?, ?, ?, ?)`,
+			if _, err := s.db.Exec(`INSERT INTO workspace_folders (id, user_id, shared_folder_id, path, sub_path, created_at) VALUES (?, ?, ?, ?, ?, ?)`,
-				id, userID, sfID, clean, subPath, now)
+				id, userID, sfID, clean, subPath, now); err != nil {
+				return "", err
+			}
 		}
 	} else {
 		var existsID string
 		err := s.db.QueryRow(`SELECT id FROM workspace_folders WHERE user_id = ? AND path = ? AND (shared_folder_id = '' OR shared_folder_id IS NULL)`, userID, clean).Scan(&existsID)
 		if err == sql.ErrNoRows {
-			_, _ = s.db.Exec(`INSERT INTO workspace_folders (id, user_id, shared_folder_id, path, sub_path, created_at) VALUES (?, ?, '', ?, '', ?)`,
+			if _, err := s.db.Exec(`INSERT INTO workspace_folders (id, user_id, shared_folder_id, path, sub_path, created_at) VALUES (?, ?, '', ?, '', ?)`,
-				id, userID, clean, now)
+				id, userID, clean, now); err != nil {
+				return "", err
+			}
 		}
 	}
 
@@ -127,6 +131,7 @@ func (s *Store) DeleteFolder(userID, folderPath string) ([]string, error) {
 	}
 
 	var deletedDocIDs []string
+	var writes []sqlStmt
 	seenDocID := make(map[string]bool)
 
 	mounts, _, err := s.getUserFolderMounts(userID)
@@ -138,8 +143,7 @@ func (s *Store) DeleteFolder(userID, folderPath string) ([]string, error) {
 				shFolder, sfErr := s.GetSharedFolderByID(userID, sfID)
 				if sfErr == nil && !shFolder.IsOwner {
 					// Collaborator removing mount/share
-					_ = s.DeleteSharedFolder(userID, sfID)
+					return []string{}, s.DeleteSharedFolder(userID, sfID)
-					return []string{}, nil
 				}
 				rows, qErr := s.db.Query(`SELECT id FROM documents WHERE shared_folder_id = ?`, sfID)
 				if qErr == nil {
@@ -152,7 +156,7 @@ func (s *Store) DeleteFolder(userID, folderPath string) ([]string, error) {
 					}
 					_ = rows.Close()
 				}
-				_, _ = s.db.Exec(`DELETE FROM workspace_folders WHERE shared_folder_id = ?`, sfID)
+				writes = append(writes, stmt(`DELETE FROM workspace_folders WHERE shared_folder_id = ?`, sfID))
 			} else {
 				// Subfolder inside a shared folder
 				rows, qErr := s.db.Query(
@@ -169,8 +173,8 @@ func (s *Store) DeleteFolder(userID, folderPath string) ([]string, error) {
 					}
 					_ = rows.Close()
 				}
-				_, _ = s.db.Exec(`DELETE FROM workspace_folders WHERE shared_folder_id = ? AND (sub_path = ? OR sub_path LIKE ?)`,
+				writes = append(writes, stmt(`DELETE FROM workspace_folders WHERE shared_folder_id = ? AND (sub_path = ? OR sub_path LIKE ?)`,
-					sfID, subPath, subPath+"/%")
+					sfID, subPath, subPath+"/%"))
 			}
 		}
 	}
@@ -195,13 +199,18 @@ func (s *Store) DeleteFolder(userID, folderPath string) ([]string, error) {
 
 	// The notes of the folder go to the trash; restoring one creates its folder again
 	for _, id := range deletedDocIDs {
-		_ = s.trashDocument(userID, id)
+		writes = append(writes, trashStmts(userID, id)...)
 	}
 
 	// Also clear any personal folder placements for shared notes in this folder
-	_, _ = s.db.Exec(`UPDATE doc_user_folders SET folder_path = '' WHERE user_id = ? AND (folder_path = ? OR folder_path LIKE ?)`, userID, clean, clean+"/%")
+	writes = append(writes,
-	_, _ = s.db.Exec(`DELETE FROM workspace_folders WHERE user_id = ? AND (path = ? OR path LIKE ?)`, userID, clean, clean+"/%")
+		stmt(`UPDATE doc_user_folders SET folder_path = '' WHERE user_id = ? AND (folder_path = ? OR folder_path LIKE ?)`, userID, clean, clean+"/%"),
+		stmt(`DELETE FROM workspace_folders WHERE user_id = ? AND (path = ? OR path LIKE ?)`, userID, clean, clean+"/%"))
 
+	// All of it or nothing: no folder disappears while its notes stay behind, or the other way round
+	if err := s.execInTx(writes...); err != nil {
+		return nil, err
+	}
 	return deletedDocIDs, nil
 }
 
@@ -247,7 +256,9 @@ func (s *Store) MoveDocument(userID, docID, targetFolderPath string) (*domain.Do
 		}
 
 		// Remove personal override if any
-		_, _ = s.db.Exec(`DELETE FROM doc_user_folders WHERE user_id = ? AND doc_id = ?`, userID, docID)
+		if _, err := s.db.Exec(`DELETE FROM doc_user_folders WHERE user_id = ? AND doc_id = ?`, userID, docID); err != nil {
+			return nil, err
+		}
 
 		doc.SharedFolderID = targetFolderID
 		doc.SubFolderPath = subPath
@@ -355,10 +366,10 @@ func (s *Store) MoveFolder(userID, sourcePath, targetParentPath string) (string,
 				suffix := strings.TrimPrefix(doc.FolderPath, cleanSource)
 				nextDocFolder = newFolderPath + suffix
 			}
-			_, moveErr := s.MoveDocument(userID, doc.ID, nextDocFolder)
+			if _, moveErr := s.MoveDocument(userID, doc.ID, nextDocFolder); moveErr != nil {
-			if moveErr == nil {
+				return "", movedDocIDs, fmt.Errorf("Notiz %q verschieben: %w", doc.Title, moveErr)
-				movedDocIDs = append(movedDocIDs, doc.ID)
 			}
+			movedDocIDs = append(movedDocIDs, doc.ID)
 		}
 	}
 
@@ -366,8 +377,12 @@ func (s *Store) MoveFolder(userID, sourcePath, targetParentPath string) (string,
 	targetSFID, targetSub, isTargetSF := matchMountPath(newFolderPath, mounts)
 	sourceSFID, sourceSub, isSourceSF := matchMountPath(cleanSource, mounts)
 
+	var remap []sqlStmt
 	wfRows, qErr := s.db.Query(`SELECT id, user_id, shared_folder_id, path, sub_path FROM workspace_folders`)
-	if qErr == nil {
+	if qErr != nil {
+		return "", movedDocIDs, qErr
+	}
+	{
 		type wfRecord struct {
 			id, uid, sfID, path, subPath string
 		}
@@ -402,10 +417,10 @@ func (s *Store) MoveFolder(userID, sourcePath, targetParentPath string) (string,
 						newSub = targetSub + "/" + folderName + suffix
 					}
 					if isTargetSF {
-						_, _ = s.db.Exec(`UPDATE workspace_folders SET shared_folder_id = ?, sub_path = ? WHERE id = ?`, targetSFID, newSub, r.id)
+						remap = append(remap, stmt(`UPDATE workspace_folders SET shared_folder_id = ?, sub_path = ? WHERE id = ?`, targetSFID, newSub, r.id))
 					} else {
 						newP := newFolderPath + suffix
-						_, _ = s.db.Exec(`UPDATE workspace_folders SET shared_folder_id = '', sub_path = '', path = ? WHERE id = ?`, newP, r.id)
+						remap = append(remap, stmt(`UPDATE workspace_folders SET shared_folder_id = '', sub_path = '', path = ? WHERE id = ?`, newP, r.id))
 					}
 				}
 			} else if r.path == cleanSource || strings.HasPrefix(r.path, cleanSource+"/") {
@@ -418,24 +433,29 @@ func (s *Store) MoveFolder(userID, sourcePath, targetParentPath string) (string,
 					} else {
 						newSub = targetSub + "/" + folderName + suffix
 					}
-					_, _ = s.db.Exec(`UPDATE workspace_folders SET shared_folder_id = ?, sub_path = ?, path = ? WHERE id = ?`, targetSFID, newSub, newP, r.id)
+					remap = append(remap, stmt(`UPDATE workspace_folders SET shared_folder_id = ?, sub_path = ?, path = ? WHERE id = ?`, targetSFID, newSub, newP, r.id))
 				} else {
-					_, _ = s.db.Exec(`UPDATE workspace_folders SET path = ? WHERE id = ?`, newP, r.id)
+					remap = append(remap, stmt(`UPDATE workspace_folders SET path = ? WHERE id = ?`, newP, r.id))
 				}
 			}
 		}
 	}
 
-	_, _ = s.CreateFolder(userID, newFolderPath)
+	if err := s.execInTx(remap...); err != nil {
-
+		return "", movedDocIDs, err
+	}
+	if _, err := s.CreateFolder(userID, newFolderPath); err != nil {
+		return "", movedDocIDs, err
+	}
 	return newFolderPath, movedDocIDs, nil
 }
 
 // syncSharedFolderContents ensures all documents and subfolders under cleanMount owned by ownerID are linked to folderID.
-func (s *Store) syncSharedFolderContents(ownerID, folderID, cleanMount string) {
+func (s *Store) syncSharedFolderContents(ownerID, folderID, cleanMount string) error {
 	if ownerID == "" || folderID == "" || cleanMount == "" {
-		return
+		return nil
 	}
+	var links []sqlStmt
 
 	// 1. Link all documents owned by ownerID in cleanMount to this shared folder
 	rows, err := s.db.Query(`SELECT id, folder_path FROM documents WHERE user_id = ? AND is_archived = 0 AND (folder_path = ? OR folder_path LIKE ?)`,
@@ -458,8 +478,8 @@ func (s *Store) syncSharedFolderContents(ownerID, folderID, cleanMount string) {
 			} else if strings.HasPrefix(de.fp, cleanMount+"/") {
 				subPath = strings.TrimPrefix(de.fp, cleanMount+"/")
 			}
-			_, _ = s.db.Exec(`UPDATE documents SET shared_folder_id = ?, sub_folder_path = ? WHERE id = ?`,
+			links = append(links, stmt(`UPDATE documents SET shared_folder_id = ?, sub_folder_path = ? WHERE id = ?`,
-				folderID, subPath, de.id)
+				folderID, subPath, de.id))
 		}
 	}
 
@@ -482,10 +502,11 @@ func (s *Store) syncSharedFolderContents(ownerID, folderID, cleanMount string) {
 			if strings.HasPrefix(wfe.path, cleanMount+"/") {
 				subP = strings.TrimPrefix(wfe.path, cleanMount+"/")
 			}
-			_, _ = s.db.Exec(`UPDATE workspace_folders SET shared_folder_id = ?, sub_path = ? WHERE id = ?`,
+			links = append(links, stmt(`UPDATE workspace_folders SET shared_folder_id = ?, sub_path = ? WHERE id = ?`,
-				folderID, subP, wfe.id)
+				folderID, subP, wfe.id))
 		}
 	}
+	return s.execInTx(links...)
 }
 
 func (s *Store) CreateSharedFolder(userID, folderName, initialMountPath string) (*domain.SharedFolder, error) {
@@ -506,7 +527,9 @@ func (s *Store) CreateSharedFolder(userID, folderName, initialMountPath string)
 		WHERE f.owner_id = ? AND (m.mount_path = ? OR f.name = ?)
 	`, userID, userID, cleanMount, cleanName).Scan(&existingID)
 	if err == nil && existingID != "" {
-		s.syncSharedFolderContents(userID, existingID, cleanMount)
+		if err := s.syncSharedFolderContents(userID, existingID, cleanMount); err != nil {
+			return nil, err
+		}
 		return s.GetSharedFolderByID(userID, existingID)
 	}
 
@@ -529,7 +552,9 @@ func (s *Store) CreateSharedFolder(userID, folderName, initialMountPath string)
 		return nil, err
 	}
 
-	s.syncSharedFolderContents(userID, folderID, cleanMount)
+	if err := s.syncSharedFolderContents(userID, folderID, cleanMount); err != nil {
+		return nil, err
+	}
 
 	var ownerName string
 	_ = s.db.QueryRow(`SELECT display_name FROM users WHERE id = ?`, userID).Scan(&ownerName)
@@ -756,13 +781,16 @@ func (s *Store) CreateFolderShare(currentUserID, folderID, targetType, targetIde
 	if ownerMount == "" {
 		ownerMount = f.Name
 	}
-	s.syncSharedFolderContents(f.OwnerID, folderID, ownerMount)
+	if err := s.syncSharedFolderContents(f.OwnerID, folderID, ownerMount); err != nil {
+		return nil, err
+	}
 
+	var mounts []sqlStmt
 	if cleanType == "user" {
-		_, _ = s.db.Exec(`
+		mounts = append(mounts, stmt(`
 			INSERT OR IGNORE INTO workspace_folder_mounts (user_id, folder_id, mount_path, created_at, updated_at)
 			VALUES (?, ?, ?, ?, ?)
-		`, targetID, folderID, f.Name, now, now)
+		`, targetID, folderID, f.Name, now, now))
 	} else if cleanType == "team" {
 		mRows, err := s.db.Query(`SELECT user_id FROM team_members WHERE team_id = ?`, targetID)
 		if err == nil {
@@ -775,13 +803,16 @@ func (s *Store) CreateFolderShare(currentUserID, folderID, targetType, targetIde
 			}
 			_ = mRows.Close()
 			for _, uid := range memberIDs {
-				_, _ = s.db.Exec(`
+				mounts = append(mounts, stmt(`
 					INSERT OR IGNORE INTO workspace_folder_mounts (user_id, folder_id, mount_path, created_at, updated_at)
 					VALUES (?, ?, ?, ?, ?)
-				`, uid, folderID, f.Name, now, now)
+				`, uid, folderID, f.Name, now, now))
 			}
 		}
 	}
+	if err := s.execInTx(mounts...); err != nil {
+		return nil, err
+	}
 
 	return &domain.FolderShare{
 		ID:         shareID,
@@ -806,24 +837,21 @@ func (s *Store) DeleteFolderShare(currentUserID, folderID, shareID string) error
 
 	// Only the owner manages shares; everyone else can only leave the folder
 	if !f.IsOwner {
-		_, err = s.db.Exec(`DELETE FROM workspace_folder_shares WHERE folder_id = ? AND target_type = 'user' AND target_id = ? AND (id = ? OR target_id = ?)`,
+		return s.execInTx(
-			folderID, currentUserID, cleanID, cleanID)
+			stmt(`DELETE FROM workspace_folder_shares WHERE folder_id = ? AND target_type = 'user' AND target_id = ? AND (id = ? OR target_id = ?)`,
-		_, _ = s.db.Exec(`DELETE FROM workspace_folder_mounts WHERE folder_id = ? AND user_id = ?`, folderID, currentUserID)
+				folderID, currentUserID, cleanID, cleanID),
-		return err
+			stmt(`DELETE FROM workspace_folder_mounts WHERE folder_id = ? AND user_id = ?`, folderID, currentUserID))
 	}
 
 	var targetType, targetID string
 	_ = s.db.QueryRow(`SELECT target_type, target_id FROM workspace_folder_shares WHERE folder_id = ? AND (id = ? OR target_id = ?)`,
 		folderID, cleanID, cleanID).Scan(&targetType, &targetID)
 
-	_, err = s.db.Exec(`DELETE FROM workspace_folder_shares WHERE folder_id = ? AND (id = ? OR target_id = ?)`, folderID, cleanID, cleanID)
+	writes := []sqlStmt{stmt(`DELETE FROM workspace_folder_shares WHERE folder_id = ? AND (id = ? OR target_id = ?)`, folderID, cleanID, cleanID)}
-	if err != nil {
-		return err
-	}
 	if targetType == "user" && targetID != "" {
-		_, _ = s.db.Exec(`DELETE FROM workspace_folder_mounts WHERE folder_id = ? AND user_id = ?`, folderID, targetID)
+		writes = append(writes, stmt(`DELETE FROM workspace_folder_mounts WHERE folder_id = ? AND user_id = ?`, folderID, targetID))
 	}
-	return nil
+	return s.execInTx(writes...)
 }
 
 func (s *Store) DeleteSharedFolder(currentUserID, folderID string) error {
@@ -835,12 +863,12 @@ func (s *Store) DeleteSharedFolder(currentUserID, folderID string) error {
 		return s.DeleteFolderShare(currentUserID, folderID, currentUserID)
 	}
 
-	_, _ = s.db.Exec(`UPDATE documents SET shared_folder_id = '', sub_folder_path = '' WHERE shared_folder_id = ?`, folderID)
+	return s.execInTx(
-	_, _ = s.db.Exec(`DELETE FROM workspace_folder_mounts WHERE folder_id = ?`, folderID)
+		stmt(`UPDATE documents SET shared_folder_id = '', sub_folder_path = '' WHERE shared_folder_id = ?`, folderID),
-	_, _ = s.db.Exec(`DELETE FROM workspace_folder_shares WHERE folder_id = ?`, folderID)
+		stmt(`DELETE FROM workspace_folder_mounts WHERE folder_id = ?`, folderID),
-	_, _ = s.db.Exec(`DELETE FROM workspace_folders WHERE shared_folder_id = ?`, folderID)
+		stmt(`DELETE FROM workspace_folder_shares WHERE folder_id = ?`, folderID),
-	_, err = s.db.Exec(`DELETE FROM workspace_shared_folders WHERE id = ?`, folderID)
+		stmt(`DELETE FROM workspace_folders WHERE shared_folder_id = ?`, folderID),
-	return err
+		stmt(`DELETE FROM workspace_shared_folders WHERE id = ?`, folderID))
 }
 
 // GetSharedFolderDocIDs returns all non-archived document IDs belonging to a shared folder.

internal/storage/import_markdown.go

@@ -33,9 +33,31 @@ type ImportPlan struct {
 	TaskLists []importTaskList   `json:"-"`
 	Lists     []importList       `json:"-"`
 	Inbox     []importTask       `json:"-"`
+	Themes    []domain.UserTheme `json:"-"`
 	Skipped   []ImportSkip       `json:"skipped"`
 }
 
+// Only keeps the chosen sections of the plan (see NormalizeSections).
+func (p *ImportPlan) Only(sections map[string]bool) *ImportPlan {
+	out := &ImportPlan{Skipped: p.Skipped}
+	if sections[SectionNotes] {
+		out.Folders, out.Docs = p.Folders, p.Docs
+	}
+	if sections[SectionTasks] {
+		out.TaskLists = p.TaskLists
+	}
+	if sections[SectionLists] {
+		out.Lists = p.Lists
+	}
+	if sections[SectionInbox] {
+		out.Inbox = p.Inbox
+	}
+	if sections[SectionThemes] {
+		out.Themes = p.Themes
+	}
+	return out
+}
+
 type ImportSkip struct {
 	Path   string `json:"path"`
 	Reason string `json:"reason"`
@@ -50,6 +72,7 @@ type ImportSummary struct {
 	Lists     int          `json:"lists"`
 	ListItems int          `json:"listItems"`
 	Inbox     int          `json:"inbox"`
+	Themes    int          `json:"themes"`
 	Skipped   []ImportSkip `json:"skipped"`
 	Applied   bool         `json:"applied"`
 }
@@ -85,7 +108,7 @@ func (p *ImportPlan) skip(path, reason string) {
 }
 
 func (p *ImportPlan) Summary(applied bool) ImportSummary {
-	sum := ImportSummary{Folders: len(p.Folders), Notes: len(p.Docs), Lists: len(p.Lists), Inbox: len(p.Inbox), Skipped: p.Skipped, Applied: applied}
+	sum := ImportSummary{Folders: len(p.Folders), Notes: len(p.Docs), Lists: len(p.Lists), Inbox: len(p.Inbox), Themes: len(p.Themes), Skipped: p.Skipped, Applied: applied}
 	for _, tl := range p.TaskLists {
 		if tl.title != "" {
 			sum.TaskLists++
@@ -416,6 +439,7 @@ func PlanMindSiftJSONImport(data []byte) (*ImportPlan, error) {
 		}
 		plan.Lists = append(plan.Lists, il)
 	}
+	plan.Themes = exp.Themes
 	plan.Folders = sortedKeys(folders)
 	return plan, nil
 }
@@ -484,6 +508,11 @@ func (s *Store) ApplyImport(userID string, plan *ImportPlan) (ImportSummary, err
 			}
 		}
 	}
+	for _, th := range plan.Themes {
+		if _, err := s.SaveUserTheme(userID, "", th.Name, th.CSS); err != nil {
+			plan.skip(th.Name, "Theme: "+err.Error())
+		}
+	}
 	return plan.Summary(true), nil
 }
 

internal/storage/lists.go

@@ -500,3 +500,48 @@ func (s *Store) ReorderListItems(listID string, items []domain.ListItemReorderIt
 	_, _ = tx.Exec(`UPDATE lists SET updated_at = ? WHERE id = ?`, domain.NowISO(), listID)
 	return tx.Commit()
 }
+
+// ErrListNotFound: the list does not exist or the user has no access to it (deliberately the same).
+var ErrListNotFound = errors.New("Liste nicht gefunden")
+
+// ErrListReadOnly: the list is shared with the user as viewer.
+var ErrListReadOnly = errors.New("Diese Liste ist für dich nur lesbar")
+
+// ListRole is the user's role in a list: owner, editor, viewer or "" without access.
+func (s *Store) ListRole(userID, listID string) string {
+	var role string
+	err := s.db.QueryRow(`
+		SELECT CASE WHEN l.user_id = ? THEN 'owner'
+		            WHEN MAX(CASE WHEN ls.role = 'editor' THEN 1 ELSE 0 END) = 1 THEN 'editor'
+		            ELSE 'viewer' END
+		FROM lists l
+		LEFT JOIN list_shares ls ON ls.list_id = l.id AND (
+		    (ls.target_type = 'user' AND ls.target_id = ?)
+		    OR (ls.target_type = 'team' AND ls.target_id IN (SELECT team_id FROM team_members WHERE user_id = ?))
+		)
+		WHERE l.id = ? AND (l.user_id = ? OR ls.id IS NOT NULL)
+		GROUP BY l.id`, userID, userID, userID, listID, userID).Scan(&role)
+	if err != nil {
+		return ""
+	}
+	return role
+}
+
+// EnsureListItemsWritable checks that the user may change the items of a list (owner or editor) and,
+// if itemID is given, that the item belongs to that list.
+func (s *Store) EnsureListItemsWritable(userID, listID, itemID string) error {
+	switch s.ListRole(userID, listID) {
+	case "":
+		return ErrListNotFound
+	case "viewer":
+		return ErrListReadOnly
+	}
+	if itemID != "" {
+		var n int
+		_ = s.db.QueryRow(`SELECT COUNT(*) FROM list_items WHERE id = ? AND list_id = ?`, itemID, listID).Scan(&n)
+		if n == 0 {
+			return ErrListNotFound
+		}
+	}
+	return nil
+}

internal/storage/migrations.go

@@ -0,0 +1,112 @@
+package storage
+
+import (
+	"database/sql"
+	"fmt"
+	"log/slog"
+	"regexp"
+	"strings"
+
+	"github.com/sandrodach/mindsift/internal/domain"
+)
+
+// Schema migrations (FLAW-13). Every step runs exactly once per database and is recorded in
+// schema_migrations; a failing step stops the start with its error instead of being ignored.
+// New schema changes are appended as new steps (next free id), never edited into old ones.
+// PRAGMA user_version mirrors the highest applied id. Ids 1 and 2 were used by earlier releases
+// (database wipes on start), so the first step here is 3.
+
+type migration struct {
+	id   int
+	name string
+	run  func(s *Store) error
+}
+
+var migrations = []migration{
+	{3, "Basis-Schema v0.4.1", (*Store).migrateBaseline},
+}
+
+func (s *Store) migrate() error {
+	if _, err := s.db.Exec(`CREATE TABLE IF NOT EXISTS schema_migrations (
+		id INTEGER PRIMARY KEY,
+		name TEXT NOT NULL,
+		applied_at TEXT NOT NULL
+	)`); err != nil {
+		return err
+	}
+	applied := map[int]bool{}
+	rows, err := s.db.Query(`SELECT id FROM schema_migrations`)
+	if err != nil {
+		return err
+	}
+	for rows.Next() {
+		var id int
+		if rows.Scan(&id) == nil {
+			applied[id] = true
+		}
+	}
+	_ = rows.Close()
+
+	last := 0
+	for _, m := range migrations {
+		last = m.id
+		if applied[m.id] {
+			continue
+		}
+		slog.Info("Datenbank-Migration", "id", m.id, "name", m.name)
+		if err := m.run(s); err != nil {
+			return fmt.Errorf("Migration %d (%s): %w", m.id, m.name, err)
+		}
+		if _, err := s.db.Exec(`INSERT INTO schema_migrations (id, name, applied_at) VALUES (?, ?, ?)`,
+			m.id, m.name, domain.NowISO()); err != nil {
+			return err
+		}
+	}
+	_, err = s.db.Exec(fmt.Sprintf(`PRAGMA user_version = %d`, last))
+	return err
+}
+
+var addColumnRe = regexp.MustCompile(`(?is)^\s*ALTER\s+TABLE\s+(\w+)\s+ADD\s+COLUMN\s+(\w+)\s+(.+?);?\s*$`)
+
+// execSchemaStatement runs one schema statement; "ALTER TABLE … ADD COLUMN" only when the column is
+// missing, so that a real error is never mistaken for "already there".
+func (s *Store) execSchemaStatement(q string) error {
+	if m := addColumnRe.FindStringSubmatch(q); m != nil {
+		return s.addColumnIfMissing(m[1], m[2], m[3])
+	}
+	if _, err := s.db.Exec(q); err != nil {
+		return fmt.Errorf("%w (%s)", err, strings.TrimSpace(q))
+	}
+	return nil
+}
+
+func (s *Store) addColumnIfMissing(table, column, definition string) error {
+	exists, err := s.columnExists(table, column)
+	if err != nil || exists {
+		return err
+	}
+	if _, err := s.db.Exec(fmt.Sprintf(`ALTER TABLE %s ADD COLUMN %s %s`, table, column, definition)); err != nil {
+		return fmt.Errorf("Spalte %s.%s anlegen: %w", table, column, err)
+	}
+	return nil
+}
+
+func (s *Store) columnExists(table, column string) (bool, error) {
+	rows, err := s.db.Query(fmt.Sprintf(`PRAGMA table_info(%s)`, table))
+	if err != nil {
+		return false, err
+	}
+	defer rows.Close()
+	for rows.Next() {
+		var cid, notNull, pk int
+		var name, typ string
+		var dflt sql.NullString
+		if err := rows.Scan(&cid, &name, &typ, &notNull, &dflt, &pk); err != nil {
+			return false, err
+		}
+		if strings.EqualFold(name, column) {
+			return true, nil
+		}
+	}
+	return false, rows.Err()
+}

internal/storage/migrations_test.go

@@ -0,0 +1,45 @@
+package storage
+
+import (
+	"errors"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestMigrationsRunOnceAndRepairOldDatabases(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "migrate.db")
+	store, err := NewStore(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var n int
+	_ = store.db.QueryRow(`SELECT COUNT(*) FROM schema_migrations`).Scan(&n)
+	if n != len(migrations) {
+		t.Fatalf("expected %d recorded migrations, got %d", len(migrations), n)
+	}
+
+	// A database from before the migration table, missing a later column
+	if _, err := store.db.Exec(`ALTER TABLE thoughts DROP COLUMN alarm_failures`); err != nil {
+		t.Fatal(err)
+	}
+	_, _ = store.db.Exec(`DROP TABLE schema_migrations`)
+	_ = store.Close()
+
+	store, err = NewStore(path)
+	if err != nil {
+		t.Fatalf("reopen: %v", err)
+	}
+	if ok, _ := store.columnExists("thoughts", "alarm_failures"); !ok {
+		t.Fatal("baseline must add missing columns to older databases")
+	}
+
+	// A failing step stops the start with its error and is not recorded
+	saved := migrations
+	defer func() { migrations = saved }()
+	migrations = append(append([]migration{}, saved...), migration{999, "kaputt", func(*Store) error { return errors.New("boom") }})
+	_ = store.Close()
+	if _, err := NewStore(path); err == nil || !strings.Contains(err.Error(), "Migration 999") {
+		t.Fatalf("failing migration must abort the start, got %v", err)
+	}
+}

internal/storage/password_reset.go

@@ -84,6 +84,9 @@ func (s *Store) ResetPasswordWithToken(raw, passwordHash string) (string, error)
 	if n, _ := res.RowsAffected(); n == 0 {
 		return "", ErrResetTokenInvalid // used in parallel
 	}
-	_, _ = s.db.Exec(`UPDATE password_reset_tokens SET used_at = ? WHERE user_id = ? AND used_at = ''`, now, userID)
+	// New password and the end of every other open link belong together
-	return userID, s.UpdateUserPassword(userID, passwordHash)
+	return userID, s.execInTx(
+		stmt(`UPDATE password_reset_tokens SET used_at = ? WHERE user_id = ? AND used_at = ''`, now, userID),
+		stmt(`UPDATE users SET password_hash = ?, token_version = token_version + 1 WHERE id = ?`, passwordHash, userID),
+	)
 }

internal/storage/recurrence.go

@@ -2,6 +2,7 @@ package storage
 
 import (
 	"errors"
+	"log/slog"
 	"time"
 
 	"github.com/sandrodach/mindsift/internal/domain"
@@ -111,9 +112,11 @@ func (s *Store) spawnNextOccurrence(taskID string) {
 	due := NextDueDate(t.DueDate, t.Recurrence, time.Now())
 	next, err := s.CreateThoughtWithDetails(t.UserID, t.Content, t.Priority, t.Source, due, t.TaskListID, column, t.Notes)
 	if err != nil {
+		slog.Error("Folgeaufgabe konnte nicht angelegt werden", "task_id", taskID, "error", err)
 		return
 	}
 	if _, err := s.UpdateThoughtTriage(t.UserID, next.ID, "keep", "task", "", due, t.TaskListID); err != nil {
+		slog.Error("Folgeaufgabe konnte nicht als Aufgabe abgelegt werden", "task_id", next.ID, "error", err)
 		return
 	}
 	subs := make([]domain.SubTask, len(t.Subtasks))
@@ -121,10 +124,15 @@ func (s *Store) spawnNextOccurrence(taskID string) {
 		subs[i] = domain.SubTask{ID: domain.NewID("st"), Title: st.Title, CreatedAt: domain.NowISO()}
 	}
 	tags := t.Tags
-	_, _ = s.UpdateThoughtDetails(t.UserID, next.ID, nil, nil, nil, nil, nil, &column, nil, &subs, &tags)
+	if _, err := s.UpdateThoughtDetails(t.UserID, next.ID, nil, nil, nil, nil, nil, &column, nil, &subs, &tags); err != nil {
-	_, _ = s.db.Exec(`UPDATE thoughts SET recurrence = ?, sort_order = ? WHERE id = ?`, t.Recurrence, t.SortOrder, next.ID)
+		slog.Error("Folgeaufgabe: Unteraufgaben und Tags fehlen", "task_id", next.ID, "error", err)
+	}
+	carry := []sqlStmt{stmt(`UPDATE thoughts SET recurrence = ?, sort_order = ? WHERE id = ?`, t.Recurrence, t.SortOrder, next.ID)}
 	for _, uid := range t.Assignees {
-		_, _ = s.db.Exec(`INSERT OR IGNORE INTO task_assignees (task_id, user_id, created_at) VALUES (?, ?, ?)`, next.ID, uid, domain.NowISO())
+		carry = append(carry, stmt(`INSERT OR IGNORE INTO task_assignees (task_id, user_id, created_at) VALUES (?, ?, ?)`, next.ID, uid, domain.NowISO()))
+	}
+	if err := s.execInTx(carry...); err != nil {
+		slog.Error("Folgeaufgabe: Wiederholung und Zuweisungen nicht übernommen", "task_id", next.ID, "error", err)
 	}
 	s.PruneTaskAssignees()
 

internal/storage/recurrence_test.go

@@ -138,3 +138,50 @@ func TestAlarmResetsOnNewDueDateOrReopen(t *testing.T) {
 		t.Errorf("reopening must re-arm the alarm")
 	}
 }
+
+func TestAlarmGivesUpAfterThreeFailedRuns(t *testing.T) {
+	store, err := NewStore(filepath.Join(t.TempDir(), "alarmfail.db"))
+	if err != nil {
+		t.Fatalf("NewStore: %v", err)
+	}
+	defer store.Close()
+	u, _ := store.CreateUser("anna@example.com", "hash", "Anna", "member")
+	task, _ := store.CreateThoughtWithDetails(u.ID, "Webhook kaputt", "normal", "manual", "2026-10-30", "", "todo", "")
+	_, _ = store.UpdateThoughtTriage(u.ID, task.ID, "keep", "task", "", "", "")
+	pending := func() bool {
+		alarms, _ := store.GetDueTasksForAlarm()
+		for _, a := range alarms {
+			if a.TaskID == task.ID {
+				return true
+			}
+		}
+		return false
+	}
+
+	for run := 1; run <= MaxAlarmFailures; run++ {
+		gaveUp, err := store.RecordTaskAlarmFailure(task.ID)
+		if err != nil {
+			t.Fatalf("run %d: %v", run, err)
+		}
+		if gaveUp != (run == MaxAlarmFailures) || pending() == (run == MaxAlarmFailures) {
+			t.Fatalf("run %d: gaveUp=%v pending=%v", run, gaveUp, pending())
+		}
+	}
+
+	// A new due date gets three fresh attempts
+	later := "2026-11-02"
+	_, _ = store.UpdateThoughtDetails(u.ID, task.ID, nil, nil, &later, nil, nil, nil, nil, nil, nil)
+	if !pending() {
+		t.Fatalf("new due date must re-arm the alarm")
+	}
+	if gaveUp, _ := store.RecordTaskAlarmFailure(task.ID); gaveUp {
+		t.Errorf("failure counter must start over after a new due date")
+	}
+	// Success clears the counter
+	_ = store.MarkTaskAlarmSent(task.ID)
+	var failures int
+	_ = store.db.QueryRow(`SELECT alarm_failures FROM thoughts WHERE id = ?`, task.ID).Scan(&failures)
+	if failures != 0 {
+		t.Errorf("successful alarm should reset failures, got %d", failures)
+	}
+}

internal/storage/sqlite.go

@@ -5,6 +5,7 @@ import (
 	"database/sql"
 	"encoding/json"
 	"fmt"
+	"log/slog"
 	"os"
 	"path/filepath"
 	"strings"
@@ -32,9 +33,12 @@ func NewStore(dbPath string) (*Store, error) {
 		}
 	}
 
+	// _txlock=immediate: transactions take the write lock when they begin. A transaction that reads
+	// first and writes later would otherwise fail at once with SQLITE_BUSY while another one writes
+	// (busy_timeout cannot help there); now it simply waits its turn (FLAW-23).
 	dsn := dbPath
 	if !strings.Contains(dsn, "?") {
-		dsn += "?_pragma=busy_timeout(10000)&_pragma=journal_mode(WAL)&_pragma=synchronous(NORMAL)&_pragma=foreign_keys(1)"
+		dsn += "?_pragma=busy_timeout(10000)&_pragma=journal_mode(WAL)&_pragma=synchronous(NORMAL)&_pragma=foreign_keys(1)&_txlock=immediate"
 	}
 
 	db, err := sql.Open("sqlite", dsn)
@@ -57,10 +61,6 @@ func (s *Store) Close() error {
 	return s.db.Close()
 }
 
-// schemaVersion is stored in PRAGMA user_version so later releases can tell which migrations a database
-// already has. (Version 2 once wiped older databases on start; all installations are past that now.)
-const schemaVersion = 2
-
 // dropAllTables removes every table; used by the demo mode reset.
 func (s *Store) dropAllTables() error {
 	conn, err := s.db.Conn(context.Background())
@@ -94,7 +94,9 @@ func (s *Store) dropAllTables() error {
 	return err
 }
 
-func (s *Store) migrate() error {
+// migrateBaseline is migration 3: the complete schema as of v0.4.1, built so that it also brings any
+// older database up to that state. It runs once per database (see migrations.go).
+func (s *Store) migrateBaseline() error {
 	schema := `
 	PRAGMA journal_mode = WAL;
 	PRAGMA synchronous = NORMAL;
@@ -375,6 +377,7 @@ func (s *Store) migrate() error {
 
 	// Idempotent column migrations for existing databases
 	columnMigrations := []string{
+		"ALTER TABLE thoughts ADD COLUMN alarm_failures INTEGER NOT NULL DEFAULT 0;",
 		"ALTER TABLE documents ADD COLUMN archived_at TEXT NOT NULL DEFAULT '';",
 		"ALTER TABLE documents ADD COLUMN archived_by TEXT NOT NULL DEFAULT '';",
 		"ALTER TABLE users ADD COLUMN username TEXT NOT NULL DEFAULT '';",
@@ -462,23 +465,41 @@ func (s *Store) migrate() error {
 		"ALTER TABLE thoughts ADD COLUMN recurrence_spawned INTEGER NOT NULL DEFAULT 0;",
 	}
 	for _, q := range columnMigrations {
-		_, _ = s.db.Exec(q)
+		if err := s.execSchemaStatement(q); err != nil {
+			return err
+		}
 	}
 
 	// Clean up legacy space and old document block/crdt tables
-	_, _ = s.db.Exec(`DROP TABLE IF EXISTS spaces`)
+	if _, err := s.db.Exec(`DROP TABLE IF EXISTS spaces`); err != nil {
-	_, _ = s.db.Exec(`DROP TABLE IF EXISTS space_members`)
+		return err
-	_, _ = s.db.Exec(`DROP TABLE IF EXISTS space_team_shares`)
+	}
-	_, _ = s.db.Exec(`DROP TABLE IF EXISTS document_crdt_state`)
+	if _, err := s.db.Exec(`DROP TABLE IF EXISTS space_members`); err != nil {
-	_, _ = s.db.Exec(`DROP TABLE IF EXISTS document_crdt_updates`)
+		return err
-	_, _ = s.db.Exec(`DROP TABLE IF EXISTS document_blocks`)
+	}
-	_, _ = s.db.Exec(`DROP TABLE IF EXISTS doc_block_tags`)
+	if _, err := s.db.Exec(`DROP TABLE IF EXISTS space_team_shares`); err != nil {
+		return err
+	}
+	if _, err := s.db.Exec(`DROP TABLE IF EXISTS document_crdt_state`); err != nil {
+		return err
+	}
+	if _, err := s.db.Exec(`DROP TABLE IF EXISTS document_crdt_updates`); err != nil {
+		return err
+	}
+	if _, err := s.db.Exec(`DROP TABLE IF EXISTS document_blocks`); err != nil {
+		return err
+	}
+	if _, err := s.db.Exec(`DROP TABLE IF EXISTS doc_block_tags`); err != nil {
+		return err
+	}
 
 	// Backfill username for existing accounts where username is empty
-	_, _ = s.db.Exec(`UPDATE users SET username = LOWER(SUBSTR(email, 1, INSTR(email, '@') - 1)) WHERE (username IS NULL OR username = '') AND INSTR(email, '@') > 0`)
+	if _, err := s.db.Exec(`UPDATE users SET username = LOWER(SUBSTR(email, 1, INSTR(email, '@') - 1)) WHERE (username IS NULL OR username = '') AND INSTR(email, '@') > 0`); err != nil {
+		return err
+	}
 
 	// Default system settings (public registration disabled by default; invite or admin creation required)
-	_, _ = s.db.Exec(`INSERT OR IGNORE INTO system_settings (key, value) VALUES 
+	if _, err := s.db.Exec(`INSERT OR IGNORE INTO system_settings (key, value) VALUES 
 		('sharing_mode', 'organizations'),
 		('allow_registration', 'false'),
 		('instance_name', 'MindSift'),
@@ -489,15 +510,30 @@ func (s *Store) migrate() error {
 		('smtp_from', ''),
 		('smtp_tls', 'true'),
 		('smtp_skip_verify', 'false'),
-		('allow_private_webhooks', 'false')`)
+		('allow_private_webhooks', 'false')`); err != nil {
+		return err
+	}
 
 	// Clean up legacy roles in team_members and users
-	_, _ = s.db.Exec(`UPDATE team_members SET role = 'admin' WHERE role IN ('team_admin', 'owner')`)
+	if _, err := s.db.Exec(`UPDATE team_members SET role = 'admin' WHERE role IN ('team_admin', 'owner')`); err != nil {
-	_, _ = s.db.Exec(`UPDATE team_members SET role = 'member' WHERE role NOT IN ('admin', 'member')`)
+		return err
-	_, _ = s.db.Exec(`UPDATE users SET role = 'member' WHERE role = 'team_admin'`)
+	}
+	if _, err := s.db.Exec(`UPDATE team_members SET role = 'member' WHERE role NOT IN ('admin', 'member')`); err != nil {
+		return err
+	}
+	if _, err := s.db.Exec(`UPDATE users SET role = 'member' WHERE role = 'team_admin'`); err != nil {
+		return err
+	}
+
+	// Keys from before scopes existed ("ingest,read") may deliver into the inbox, as before
+	if _, err := s.db.Exec(`UPDATE api_keys SET scopes = 'webhook:triage' WHERE scopes NOT LIKE '%webhook:%'`); err != nil {
+		return err
+	}
 
 	// Block tree, operation log and idempotency tables for collaborative editing
-	s.migrateDocSync()
+	if err := s.migrateDocSync(); err != nil {
+		return err
+	}
 
 	// Migrate workspace documents, blocks, folders, and strip legacy folder:* tags into pure DB tables
 	s.migrateWorkspaceToPureDB()
@@ -514,8 +550,7 @@ func (s *Store) migrate() error {
 		return err
 	}
 
-	_, err := s.db.Exec(fmt.Sprintf(`PRAGMA user_version = %d`, schemaVersion))
+	return nil
-	return err
 }
 
 // EnsureDefaultUser is retained strictly for unit test convenience
@@ -631,7 +666,36 @@ func (s *Store) migrateWorkspaceToPureDB() {
 		}
 		_ = sfRows.Close()
 		for _, info := range sfs {
-			s.syncSharedFolderContents(info.ownerID, info.id, info.mountPath)
+			if err := s.syncSharedFolderContents(info.ownerID, info.id, info.mountPath); err != nil {
+				slog.Error("Geteilte Ordner abgleichen fehlgeschlagen", "folder", info.id, "error", err)
 			}
 		}
 	}
+}
+
+// sqlStmt is one statement of a change with several steps (FLAW-14).
+type sqlStmt struct {
+	query string
+	args  []interface{}
+}
+
+func stmt(query string, args ...interface{}) sqlStmt { return sqlStmt{query, args} }
+
+// execInTx runs all statements in one transaction: either every step is stored or none, and the
+// first error is returned instead of being ignored.
+func (s *Store) execInTx(stmts ...sqlStmt) error {
+	if len(stmts) == 0 {
+		return nil
+	}
+	tx, err := s.db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+	for _, st := range stmts {
+		if _, err := tx.Exec(st.query, st.args...); err != nil {
+			return err
+		}
+	}
+	return tx.Commit()
+}

internal/storage/sqlite_test.go

@@ -87,7 +87,7 @@ func TestStoreLifecycle(t *testing.T) {
 	}
 
 	// 4. Test Webhook API Key generation & validation
-	apiKey, err := store.CreateAPIKey(user.ID, "Home Assistant")
+	apiKey, err := store.CreateAPIKey(user.ID, "Home Assistant", nil)
 	if err != nil {
 		t.Fatalf("CreateAPIKey failed: %v", err)
 	}

internal/storage/system.go

@@ -2,6 +2,7 @@ package storage
 
 import (
 	"encoding/json"
+	"strconv"
 	"strings"
 
 	"github.com/sandrodach/mindsift/internal/domain"
@@ -18,15 +19,18 @@ func (s *Store) GetDashboardStats(userID string) (*domain.DashboardStats, error)
 	_ = s.db.QueryRow(`SELECT COUNT(*) FROM thoughts WHERE `+taskScope+` AND is_completed = 1`, userID, userID, userID, userID).Scan(&st.TasksDoneCount)
 	_ = s.db.QueryRow(`SELECT COUNT(*) FROM documents WHERE user_id = ? AND is_archived = 0`, userID).Scan(&st.DocsCount)
 	_ = s.db.QueryRow(`SELECT COUNT(*) FROM thoughts WHERE user_id = ? AND status = 'discarded'`, userID).Scan(&st.DiscardedCount)
-	_ = s.db.QueryRow(`
+	// Own lists and lists shared with the user directly or through a group
-		SELECT COUNT(DISTINCT l.id) 
+	visibleLists := `
+		SELECT l.id
 		FROM lists l
 		LEFT JOIN list_shares ls ON ls.list_id = l.id AND (
 		    (ls.target_type = 'user' AND ls.target_id = ?)
 		    OR (ls.target_type = 'team' AND ls.target_id IN (SELECT team_id FROM team_members WHERE user_id = ?))
 		)
-		WHERE l.user_id = ? OR ls.id IS NOT NULL`,
+		WHERE l.user_id = ? OR ls.id IS NOT NULL`
-		userID, userID, userID).Scan(&st.ListsCount)
+	_ = s.db.QueryRow(`SELECT COUNT(DISTINCT id) FROM (`+visibleLists+`)`, userID, userID, userID).Scan(&st.ListsCount)
+	_ = s.db.QueryRow(`SELECT COUNT(*) FROM list_items WHERE is_completed = 0 AND list_id IN (`+visibleLists+`)`,
+		userID, userID, userID).Scan(&st.ListItemsOpenCount)
 
 	// Count open (uncompleted) To-Dos across accessible workspace documents (owned or shared)
 	docRows, err := s.db.Query(`
@@ -72,6 +76,7 @@ func (s *Store) ExportUserData(userID string) (*domain.FullExport, error) {
 	docs, _ := s.GetDocuments(userID)
 	lists, _ := s.GetAllListsForUser(userID)
 	taskLists, _ := s.GetTaskLists(userID)
+	themes, _ := s.GetUserThemes(userID)
 
 	return &domain.FullExport{
 		ExportedAt: domain.NowISO(),
@@ -81,6 +86,7 @@ func (s *Store) ExportUserData(userID string) (*domain.FullExport, error) {
 		Documents:  docs,
 		Lists:      lists,
 		TaskLists:  taskLists,
+		Themes:     themes,
 	}, nil
 }
 
@@ -113,6 +119,8 @@ func (s *Store) GetSystemSettings() (*domain.SystemSettings, error) {
 		InstanceName:        "MindSift",
 		SMTPPort:            "587",
 		SMTPTLS:             true,
+		BackupTime:          DefaultBackupTime,
+		BackupRetentionDays: DefaultBackupRetentionDays,
 	}
 
 	rows, err := s.db.Query(`SELECT key, value FROM system_settings`)
@@ -149,6 +157,16 @@ func (s *Store) GetSystemSettings() (*domain.SystemSettings, error) {
 				settings.SMTPSkipVerify = v == "true"
 			case "allow_private_webhooks":
 				settings.AllowPrivateWebhooks = v == "true"
+			case "backup_enabled":
+				settings.BackupEnabled = v == "true"
+			case "backup_time":
+				if validBackupTime(v) {
+					settings.BackupTime = v
+				}
+			case "backup_retention_days":
+				if n, err := strconv.Atoi(v); err == nil && n > 0 {
+					settings.BackupRetentionDays = n
+				}
 			}
 		}
 	}
@@ -179,6 +197,12 @@ func (s *Store) UpdateSystemSettings(settings *domain.SystemSettings) error {
 	if settings.InstanceName == "" {
 		settings.InstanceName = "MindSift"
 	}
+	if !validBackupTime(settings.BackupTime) {
+		settings.BackupTime = DefaultBackupTime
+	}
+	if settings.BackupRetentionDays < 1 || settings.BackupRetentionDays > 365 {
+		settings.BackupRetentionDays = DefaultBackupRetentionDays
+	}
 	_, err := s.db.Exec(`INSERT INTO system_settings (key, value) VALUES 
 		('sharing_mode', ?),
 		('allow_registration', ?),
@@ -190,7 +214,10 @@ func (s *Store) UpdateSystemSettings(settings *domain.SystemSettings) error {
 		('smtp_from', ?),
 		('smtp_tls', ?),
 		('smtp_skip_verify', ?),
-		('allow_private_webhooks', ?)
+		('allow_private_webhooks', ?),
+		('backup_enabled', ?),
+		('backup_time', ?),
+		('backup_retention_days', ?)
 		ON CONFLICT(key) DO UPDATE SET value = excluded.value`,
 		settings.SharingMode,
 		regStr,
@@ -203,6 +230,9 @@ func (s *Store) UpdateSystemSettings(settings *domain.SystemSettings) error {
 		tlsStr,
 		skipVerifyStr,
 		privateHooksStr,
+		strconv.FormatBool(settings.BackupEnabled),
+		settings.BackupTime,
+		strconv.Itoa(settings.BackupRetentionDays),
 	)
 	return err
 }

internal/storage/system_test.go

@@ -0,0 +1,49 @@
+package storage
+
+import (
+	"path/filepath"
+	"testing"
+)
+
+func TestOpenListItemsCountCoversSharedLists(t *testing.T) {
+	store, err := NewStore(filepath.Join(t.TempDir(), "stats.db"))
+	if err != nil {
+		t.Fatalf("NewStore: %v", err)
+	}
+	defer store.Close()
+	openSharing(t, store)
+	anna, _ := store.CreateUser("anna@example.com", "hash", "Anna", "member")
+	ben, _ := store.CreateUser("ben@example.com", "hash", "Ben", "member")
+	carla, _ := store.CreateUser("carla@example.com", "hash", "Carla", "member")
+
+	addItems := func(owner, listID string, open, done int) {
+		for i := 0; i < open+done; i++ {
+			item, _ := store.CreateListItem(listID, "Eintrag", "", "", i, owner)
+			if i >= open {
+				_, _ = store.ToggleListItem(item.ID, true, owner, "")
+			}
+		}
+	}
+	own, _ := store.CreateList(anna.ID, "Einkauf", "🛒", "shopping")
+	addItems(anna.ID, own.ID, 2, 1)
+	direct, _ := store.CreateList(ben.ID, "Bens Liste", "", "shopping")
+	addItems(ben.ID, direct.ID, 1, 2)
+	if _, err := store.AddListShare(ben.ID, direct.ID, "user", anna.ID, "viewer"); err != nil {
+		t.Fatalf("share: %v", err)
+	}
+	viaGroup, _ := store.CreateList(carla.ID, "WG-Putzplan", "", "shopping")
+	addItems(carla.ID, viaGroup.ID, 3, 0)
+	team, _ := store.CreateTeam("", "WG", "")
+	_ = store.AddTeamMember(team.ID, anna.ID, "member")
+	_ = store.AddTeamMember(team.ID, carla.ID, "admin")
+	if _, err := store.AddListShare(carla.ID, viaGroup.ID, "team", team.ID, "editor"); err != nil {
+		t.Fatalf("team share: %v", err)
+	}
+	foreign, _ := store.CreateList(ben.ID, "Privat", "", "shopping")
+	addItems(ben.ID, foreign.ID, 5, 0)
+
+	st, _ := store.GetDashboardStats(anna.ID)
+	if st.ListItemsOpenCount != 6 || st.ListsCount != 3 {
+		t.Errorf("want 6 open items in 3 lists (own 2 + direct 1 + group 3), got %d in %d", st.ListItemsOpenCount, st.ListsCount)
+	}
+}

internal/storage/tasklists.go

@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"log/slog"
 	"strings"
 
 	"github.com/sandrodach/mindsift/internal/domain"
@@ -52,7 +53,9 @@ func (s *Store) CreateTaskList(userID, spaceID, teamID, title, icon, color strin
 		return nil, err
 	}
 	if teamID != "" && s.CanShareWith(userID, "team", teamID) {
-		_, _ = s.AddTaskListShare(tl.ID, "team", teamID, "editor", userID)
+		if _, err := s.AddTaskListShare(tl.ID, "team", teamID, "editor", userID); err != nil {
+			return nil, err
+		}
 	}
 	return s.GetTaskListByID(userID, tl.ID)
 }
@@ -211,6 +214,21 @@ func (s *Store) queryUserIDs(query string, args ...interface{}) []string {
 	return ids
 }
 
+// accessibleTaskListsSQL selects the IDs of every task list a user can see: own lists and lists shared
+// with the user directly or through a group. It takes the user ID three times (accessibleTaskListArgs).
+// This is the one definition of task list access for reading; GetTaskListPermission adds the role.
+const accessibleTaskListsSQL = `SELECT id FROM task_lists
+		 WHERE user_id = ?
+		    OR id IN (
+		        SELECT task_list_id FROM task_list_shares
+		        WHERE (target_type = 'user' AND target_id = ?)
+		           OR (target_type = 'team' AND target_id IN (SELECT team_id FROM team_members WHERE user_id = ?))
+		    )`
+
+func accessibleTaskListArgs(userID string) []interface{} {
+	return []interface{}{userID, userID, userID}
+}
+
 // taskListAccessSQL selects every user ID with access to a task list: owner, direct shares and members of
 // shared groups. %[1]s is the list ID expression ("?" or a correlated column).
 const taskListAccessSQL = `SELECT user_id FROM task_lists WHERE id = %[1]s
@@ -323,7 +341,7 @@ func (s *Store) SetTaskAssignees(userID, taskID string, assignees []string) ([]s
 // left the team, team deleted, task moved to another list or out of any list). Called after each change
 // that can take access away, so assignments never outlive permissions.
 func (s *Store) PruneTaskAssignees() {
-	_, _ = s.db.Exec(
+	_, err := s.db.Exec(
 		`DELETE FROM task_assignees WHERE rowid IN (
 		    SELECT ta.rowid FROM task_assignees ta
 		    LEFT JOIN thoughts t ON t.id = ta.task_id
@@ -331,6 +349,9 @@ func (s *Store) PruneTaskAssignees() {
 		       OR ta.user_id NOT IN (` + fmt.Sprintf(taskListAccessSQL, "t.task_list_id") + `)
 		 )`,
 	)
+	if err != nil {
+		slog.Error("Zuweisungen bereinigen fehlgeschlagen", "error", err)
+	}
 }
 
 // GetTaskListUserIDs returns every user who can see the task list: owner, direct shares and members of shared teams.
@@ -406,14 +427,9 @@ func (s *Store) GetTaskLists(userID string) ([]domain.TaskList, error) {
 	rows, err := s.db.Query(
 		`SELECT id, user_id, space_id, title, icon, color, COALESCE(columns, '[]'), created_at, updated_at
 		 FROM task_lists
-		 WHERE user_id = ? 
+		 WHERE id IN (`+accessibleTaskListsSQL+`)
-		    OR id IN (
-		        SELECT task_list_id FROM task_list_shares 
-		        WHERE (target_type = 'user' AND target_id = ?) 
-		           OR (target_type = 'team' AND target_id IN (SELECT team_id FROM team_members WHERE user_id = ?))
-		    )
 		 ORDER BY updated_at DESC`,
-		userID, userID, userID,
+		accessibleTaskListArgs(userID)...,
 	)
 	if err != nil {
 		return []domain.TaskList{}, err
@@ -465,15 +481,8 @@ func (s *Store) GetTaskListByID(userID, listID string) (*domain.TaskList, error)
 	err := s.db.QueryRow(
 		`SELECT id, user_id, space_id, title, icon, color, COALESCE(columns, '[]'), created_at, updated_at
 		 FROM task_lists
-		 WHERE id = ? AND (
+		 WHERE id = ? AND id IN (`+accessibleTaskListsSQL+`)`,
-		    user_id = ? 
+		append([]interface{}{listID}, accessibleTaskListArgs(userID)...)...,
-		    OR id IN (
-		        SELECT task_list_id FROM task_list_shares 
-		        WHERE (target_type = 'user' AND target_id = ?) 
-		           OR (target_type = 'team' AND target_id IN (SELECT team_id FROM team_members WHERE user_id = ?))
-		    )
-		 )`,
-		listID, userID, userID, userID,
 	).Scan(&tl.ID, &tl.UserID, &tl.SpaceID, &tl.Title, &tl.Icon, &tl.Color, &colsJSON, &tl.CreatedAt, &tl.UpdatedAt)
 	if err != nil {
 		return nil, err
@@ -533,9 +542,18 @@ func (s *Store) UpdateTaskList(userID, listID string, title, icon, color, spaceI
 }
 
 func (s *Store) DeleteTaskList(userID, listID string) error {
-	_, _ = s.db.Exec(`UPDATE thoughts SET task_list_id = '' WHERE task_list_id = ?`, listID)
+	var owner string
-	_, _ = s.db.Exec(`DELETE FROM task_list_shares WHERE task_list_id = ?`, listID)
+	if err := s.db.QueryRow(`SELECT user_id FROM task_lists WHERE id = ?`, listID).Scan(&owner); err != nil || owner != userID {
-	_, err := s.db.Exec(`DELETE FROM task_lists WHERE id = ? AND user_id = ?`, listID, userID)
+		return errors.New("Aufgabenliste nicht gefunden")
-	s.PruneTaskAssignees()
+	}
+	// The tasks stay (as personal tasks of their owners), shares and the list go – all or nothing
+	if err := s.execInTx(
+		stmt(`UPDATE thoughts SET task_list_id = '' WHERE task_list_id = ?`, listID),
+		stmt(`DELETE FROM task_list_shares WHERE task_list_id = ?`, listID),
+		stmt(`DELETE FROM task_lists WHERE id = ? AND user_id = ?`, listID, userID),
+	); err != nil {
 		return err
 	}
+	s.PruneTaskAssignees()
+	return nil
+}