feat(sharing): remove code redeem, unify Teilen button and team/user sharing across lists and notes

frontend/src/features/lists/SharedListsView.tsx

@@ -5,14 +5,14 @@ import {
   Circle,
   Trash2,
   Users,
-  Copy,
   Check,
   Radio,
   Sparkles,
-  UserPlus,
+  Share2,
+  User as UserIcon,
   X,
 } from 'lucide-react';
-import { ListItem, SharedList, Space, User, WSMessage } from '../../lib/types';
+import { ListItem, SharedList, Space, Team, User, WSMessage } from '../../lib/types';
 import { api, buildWebSocketURL, triggerHaptic } from '../../lib/api';
 
 interface SharedListsViewProps {
@@ -75,23 +75,22 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
   const [newItemQty, setNewItemQty] = useState('');
 
   const [wsConnected, setWsConnected] = useState(false);
-  const [copiedInvite, setCopiedInvite] = useState(false);
-
   const [showNewListModal, setShowNewListModal] = useState(false);
   const [newListTitle, setNewListTitle] = useState('');
   const [newListIcon, setNewListIcon] = useState('🛒');
 
-  const [showJoinModal, setShowJoinModal] = useState(false);
-  const [joinCode, setJoinCode] = useState('');
   const [showNewSpaceModal, setShowNewSpaceModal] = useState(false);
   const [newSpaceName, setNewSpaceName] = useState('');
 
-  const [showMembersModal, setShowMembersModal] = useState(false);
+  const [showShareModal, setShowShareModal] = useState(false);
   const [collaborators, setCollaborators] = useState<User[]>([]);
+  const [teams, setTeams] = useState<Team[]>([]);
+  const [addShareType, setAddShareType] = useState<'team' | 'user'>('team');
+  const [selectedTeamId, setSelectedTeamId] = useState('');
   const [inviteTarget, setInviteTarget] = useState('');
   const [inviteRole, setInviteRole] = useState<'editor' | 'viewer'>('editor');
   const [invitingLoading, setInvitingLoading] = useState(false);
-  const [inviteError, setInviteError] = useState<string | null>(null);
+  const [shareError, setShareError] = useState<string | null>(null);
 
   const wsRef = useRef<WebSocket | null>(null);
 
@@ -292,64 +291,46 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
     setActiveSpace(created);
   };
 
-  const handleJoinSpace = async (e: React.FormEvent) => {
+  const handleAddShare = async (e: React.FormEvent) => {
     e.preventDefault();
-    if (!joinCode.trim()) return;
+    if (!activeSpace) return;
+    setInvitingLoading(true);
+    setShareError(null);
     try {
-      const joined = await api.joinSpace(joinCode.trim());
+      if (addShareType === 'team') {
-      setJoinCode('');
+        if (!selectedTeamId) {
-      setShowJoinModal(false);
+          setShareError('Bitte ein Team oder eine Gruppe auswählen');
+          setInvitingLoading(false);
+          return;
+        }
+        await api.addSpaceMember(activeSpace.id, {
+          teamId: selectedTeamId,
+          role: inviteRole,
+        });
+        setSelectedTeamId('');
+      } else {
+        const target = inviteTarget.trim();
+        if (!target) {
+          setShareError('Bitte einen Benutzer auswählen oder eingeben');
+          setInvitingLoading(false);
+          return;
+        }
+        const isId = collaborators.some((u) => u.id === target);
+        await api.addSpaceMember(activeSpace.id, {
+          userId: isId ? target : undefined,
+          email: !isId ? target : undefined,
+          role: inviteRole,
+        });
+        setInviteTarget('');
+      }
+
       const sp = await api.getSpaces();
       setSpaces(sp);
-      setActiveSpace(joined);
+      const updated = sp.find((s) => s.id === activeSpace.id);
-    } catch (err: any) {
+      if (updated) setActiveSpace(updated);
-      alert(err.message || 'Einladungscode ungültig');
-    }
-  };
-
-  const copyInviteCode = () => {
-    if (!activeSpace) return;
-    navigator.clipboard.writeText(activeSpace.inviteCode);
-    setCopiedInvite(true);
-    setTimeout(() => setCopiedInvite(false), 2000);
-  };
-
-  const handleAddMember = async (e: React.FormEvent) => {
-    e.preventDefault();
-    if (!activeSpace) return;
-    const target = inviteTarget.trim();
-    if (!target) return;
-    setInvitingLoading(true);
-    setInviteError(null);
-    try {
-      const isId = collaborators.some((u) => u.id === target);
-      const newMember = await api.addSpaceMember(activeSpace.id, {
-        userId: isId ? target : undefined,
-        email: !isId ? target : undefined,
-        role: inviteRole,
-      });
-      setActiveSpace((prev) =>
-        prev
-          ? {
-              ...prev,
-              members: [...(prev.members || []).filter((m) => m.userId !== newMember.userId), newMember],
-            }
-          : prev
-      );
-      setSpaces((prev) =>
-        prev.map((s) =>
-          s.id === activeSpace.id
-            ? {
-                ...s,
-                members: [...(s.members || []).filter((m) => m.userId !== newMember.userId), newMember],
-              }
-            : s
-        )
-      );
-      setInviteTarget('');
       onRefreshGlobal();
     } catch (err: any) {
-      setInviteError(err.message || 'Mitglied konnte nicht eingeladen werden');
+      setShareError(err.message || 'Freigabe konnte nicht hinzugefügt werden');
     } finally {
       setInvitingLoading(false);
     }
@@ -359,7 +340,7 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
     if (!activeSpace) return;
     if (!window.confirm('Dieses Mitglied wirklich aus der Einkaufsliste / dem Bereich entfernen?')) return;
     setInvitingLoading(true);
-    setInviteError(null);
+    setShareError(null);
     try {
       await api.removeSpaceMember(activeSpace.id, targetUserId);
       setActiveSpace((prev) =>
@@ -382,7 +363,7 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
       );
       onRefreshGlobal();
     } catch (err: any) {
-      setInviteError(err.message || 'Mitglied konnte nicht entfernt werden');
+      setShareError(err.message || 'Mitglied konnte nicht entfernt werden');
     } finally {
       setInvitingLoading(false);
     }
@@ -457,16 +438,9 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
           >
             <Plus className="w-3.5 h-3.5 text-accent" /> Space
           </button>
-
-          <button
-            onClick={() => setShowJoinModal((prev) => !prev)}
-            className="btn-action h-8"
-          >
-            <UserPlus className="w-3.5 h-3.5 text-accent" /> Code einlösen
-          </button>
         </div>
 
-        {/* Realtime Status & Invite User Button */}
+        {/* Realtime Status & Share List Button */}
         {activeSpace && (
           <div className="flex items-center gap-2">
             <div
@@ -482,16 +456,20 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
 
             <button
               onClick={() => {
-                setShowMembersModal(true);
+                setShowShareModal(true);
-                api.getUsersDirectory().then(setCollaborators).catch(() => {});
+                setShareError(null);
+                Promise.all([
+                  api.getUsersDirectory().then(setCollaborators).catch(() => []),
+                  api.getUserTeams().then(setTeams).catch(() => []),
+                ]);
               }}
-              title="User zu dieser Einkaufsliste einladen & verwalten"
+              title="Einkaufsliste teilen & verwalten"
-              className="btn-action h-8 flex items-center gap-1.5"
+              className="btn-action h-8 px-2.5 text-xs flex items-center gap-1.5"
             >
-              <UserPlus className="w-3.5 h-3.5 text-accent" />
+              <Share2 className="w-3.5 h-3.5 text-accent" />
-              <span>User einladen</span>
+              <span>Teilen</span>
               {activeSpace.members && activeSpace.members.length > 1 && (
-                <span className="ml-1 px-1.5 py-0.2 bg-surface-2 text-main text-[10px] font-semibold rounded-full border border-border">
+                <span className="badge-neutral font-mono text-[10px]">
                   {activeSpace.members.length}
                 </span>
               )}
@@ -500,7 +478,7 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
         )}
       </div>
 
-      {/* Create or Join Space Modals */}
+      {/* Create Space Modal */}
       {showNewSpaceModal && (
         <form
           onSubmit={handleCreateSpace}
@@ -523,28 +501,6 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
         </form>
       )}
 
-      {showJoinModal && (
-        <form
-          onSubmit={handleJoinSpace}
-          className="p-2 panel-surface flex items-center gap-2"
-        >
-          <input
-            type="text"
-            value={joinCode}
-            onChange={(e) => setJoinCode(e.target.value)}
-            placeholder="Invite-Code des Partners eingeben…"
-            className="flex-1 h-9 px-3 input-field text-sm uppercase"
-            autoFocus
-          />
-          <button
-            type="submit"
-            className="btn-primary h-9 px-4 text-xs sm:text-sm"
-          >
-            Beitreten
-          </button>
-        </form>
-      )}
-
       {/* List Tabs within Active Space */}
       <div className="flex flex-wrap items-center gap-1.5">
         {lists.map((lst) => {
@@ -770,14 +726,14 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
         </div>
       ) : null}
 
-      {/* Space & Shopping List Members Modal */}
+      {/* Space & Shopping List Sharing Modal */}
-      {showMembersModal && activeSpace && (
+      {showShareModal && activeSpace && (
         <div className="fixed inset-0 z-50 flex items-center justify-center p-4 bg-black/60 backdrop-blur-xs">
           <div className="panel-surface w-full max-w-lg p-5 shadow-panel rounded-card border border-border space-y-4">
             {/* Modal Header */}
             <div className="flex items-center justify-between pb-2 border-b border-border">
               <div className="flex items-center gap-2">
-                <Users className="w-5 h-5 text-accent" />
+                <Share2 className="w-5 h-5 text-accent" />
                 <h3 className="text-base font-bold text-main">
                   Einkaufsliste teilen: {activeSpace.name}
                 </h3>
@@ -785,8 +741,8 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
               <button
                 type="button"
                 onClick={() => {
-                  setShowMembersModal(false);
+                  setShowShareModal(false);
-                  setInviteError(null);
+                  setShareError(null);
                 }}
                 className="btn-icon"
                 title="Schließen"
@@ -795,63 +751,133 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
               </button>
             </div>
 
-            {inviteError && (
+            {shareError && (
               <div className="p-2.5 bg-status-danger/10 border border-status-danger/30 text-status-danger rounded text-xs">
-                {inviteError}
+                {shareError}
               </div>
             )}
 
-            {/* Invite User Form */}
+            {/* Sharing Form (Team / Gruppe vs. Einzelner Benutzer) */}
-            <form onSubmit={handleAddMember} className="space-y-2.5 p-3 bg-panel-elevated border border-border rounded-card">
+            <form onSubmit={handleAddShare} className="space-y-3 p-3 bg-panel-elevated border border-border rounded-card">
-              <div className="text-xs font-semibold text-main">User direkt einladen</div>
+              <div className="flex items-center justify-between gap-2">
-              <div className="flex flex-col sm:flex-row gap-2">
+                <span className="text-xs font-semibold text-main">Freigabe hinzufügen:</span>
-                <select
+                <div className="flex items-center gap-1">
-                  value={inviteTarget}
+                  <button
-                  onChange={(e) => setInviteTarget(e.target.value)}
+                    type="button"
-                  className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs flex-1 cursor-pointer"
+                    onClick={() => {
-                >
+                      setAddShareType('team');
-                  <option value="" className="bg-panel text-muted">User auswählen oder Name/E-Mail eingeben…</option>
+                      setInviteTarget('');
-                  {collaborators
+                    }}
-                    .filter(
+                    className={`h-7 px-2.5 text-xs rounded-btn font-medium flex items-center gap-1 border transition-colors ${
-                      (u) =>
+                      addShareType === 'team'
-                        u.id !== currentUser?.id &&
+                        ? 'bg-panel border-accent text-main'
-                        !(activeSpace.members || []).some((m) => m.userId === u.id)
+                        : 'bg-canvas border-border text-muted hover:text-main'
-                    )
+                    }`}
-                    .map((u) => (
+                  >
-                      <option key={u.id} value={u.id} className="bg-panel text-main">
+                    <Users className="w-3 h-3 text-accent" />
-                        {u.displayName || u.username || u.email} ({u.username ? `@${u.username}` : u.email})
+                    <span>Team / Gruppe</span>
-                      </option>
+                  </button>
-                    ))}
+                  <button
-                </select>
+                    type="button"
-                <select
+                    onClick={() => {
-                  value={inviteRole}
+                      setAddShareType('user');
-                  onChange={(e) => setInviteRole(e.target.value as 'editor' | 'viewer')}
+                      setSelectedTeamId('');
-                  className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full sm:w-36 cursor-pointer"
+                    }}
-                >
+                    className={`h-7 px-2.5 text-xs rounded-btn font-medium flex items-center gap-1 border transition-colors ${
-                  <option value="editor" className="bg-panel text-main">Bearbeiten</option>
+                      addShareType === 'user'
-                  <option value="viewer" className="bg-panel text-main">Nur Lesen</option>
+                        ? 'bg-panel border-accent text-main'
-                </select>
+                        : 'bg-canvas border-border text-muted hover:text-main'
+                    }`}
+                  >
+                    <UserIcon className="w-3 h-3 text-accent" />
+                    <span>Einzelner Benutzer</span>
+                  </button>
+                </div>
               </div>
 
-              {/* Direct Username / Email input if user not selected from list */}
+              {addShareType === 'team' ? (
-              {(!inviteTarget || !collaborators.some((u) => u.id === inviteTarget)) && (
+                <div className="flex flex-col sm:flex-row gap-2">
-                <input
+                  <select
-                  type="text"
+                    value={selectedTeamId}
-                  placeholder="Oder Benutzername / E-Mail direkt eingeben…"
+                    onChange={(e) => setSelectedTeamId(e.target.value)}
-                  value={inviteTarget}
+                    className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs flex-1 cursor-pointer"
-                  onChange={(e) => setInviteTarget(e.target.value)}
+                  >
-                  className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full"
+                    <option value="" className="bg-panel text-muted">-- Team / Gruppe auswählen --</option>
-                />
+                    {teams.map((t) => (
+                      <option key={t.id} value={t.id} className="bg-panel text-main">
+                        👥 {t.name} ({t.members?.length || 1} Mitglieder)
+                      </option>
+                    ))}
+                  </select>
+                  <select
+                    value={inviteRole}
+                    onChange={(e) => setInviteRole(e.target.value as 'editor' | 'viewer')}
+                    className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full sm:w-36 cursor-pointer"
+                  >
+                    <option value="editor" className="bg-panel text-main">Bearbeiten</option>
+                    <option value="viewer" className="bg-panel text-main">Nur Lesen</option>
+                  </select>
+                </div>
+              ) : (
+                <div className="space-y-2">
+                  <div className="flex flex-col sm:flex-row gap-2">
+                    <select
+                      value={inviteTarget}
+                      onChange={(e) => setInviteTarget(e.target.value)}
+                      className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs flex-1 cursor-pointer"
+                    >
+                      <option value="" className="bg-panel text-muted">Benutzer auswählen oder eingeben…</option>
+                      {collaborators
+                        .filter(
+                          (u) =>
+                            u.id !== currentUser?.id &&
+                            !(activeSpace.members || []).some((m) => m.userId === u.id)
+                        )
+                        .map((u) => (
+                          <option key={u.id} value={u.id} className="bg-panel text-main">
+                            👤 {u.displayName || u.username || u.email} ({u.username ? `@${u.username}` : u.email})
+                          </option>
+                        ))}
+                    </select>
+                    <select
+                      value={inviteRole}
+                      onChange={(e) => setInviteRole(e.target.value as 'editor' | 'viewer')}
+                      className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full sm:w-36 cursor-pointer"
+                    >
+                      <option value="editor" className="bg-panel text-main">Bearbeiten</option>
+                      <option value="viewer" className="bg-panel text-main">Nur Lesen</option>
+                    </select>
+                  </div>
+
+                  {(!inviteTarget || !collaborators.some((u) => u.id === inviteTarget)) && (
+                    <input
+                      type="text"
+                      placeholder="Oder Benutzername / E-Mail direkt eingeben…"
+                      value={inviteTarget}
+                      onChange={(e) => setInviteTarget(e.target.value)}
+                      className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full"
+                    />
+                  )}
+                </div>
               )}
 
               <div className="flex justify-end pt-1">
                 <button
                   type="submit"
-                  disabled={invitingLoading || !inviteTarget.trim()}
+                  disabled={
+                    invitingLoading ||
+                    (addShareType === 'team' ? !selectedTeamId : !inviteTarget.trim())
+                  }
                   className="btn-primary text-xs h-8 px-4 flex items-center gap-1.5"
                 >
-                  <UserPlus className="w-3.5 h-3.5" />
+                  <Plus className="w-3.5 h-3.5" />
-                  <span>{invitingLoading ? 'Wird hinzugefügt…' : 'Einladen'}</span>
+                  <span>
+                    {invitingLoading
+                      ? 'Wird geteilt…'
+                      : addShareType === 'team'
+                      ? 'Team freigeben'
+                      : 'Benutzer einladen'}
+                  </span>
                 </button>
               </div>
             </form>
@@ -859,7 +885,7 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
             {/* Current Space Members List */}
             <div className="space-y-2">
               <div className="text-xs font-semibold text-muted uppercase tracking-wider">
-                Mitglieder in dieser Liste ({activeSpace.members?.length || 1})
+                Aktive Freigaben & Mitglieder ({activeSpace.members?.length || 1})
               </div>
               <div className="space-y-1.5 max-h-48 overflow-y-auto">
                 {(activeSpace.members || []).map((m) => {
@@ -902,7 +928,7 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
                             onClick={() => handleRemoveMember(m.userId)}
                             disabled={invitingLoading}
                             className="btn-icon text-muted hover:text-status-danger p-1"
-                            title="Mitglied entfernen"
+                            title="Freigabe entfernen"
                           >
                             <Trash2 className="w-3.5 h-3.5" />
                           </button>
@@ -913,24 +939,6 @@ export const SharedListsView: React.FC<SharedListsViewProps> = ({ onRefreshGloba
                 })}
               </div>
             </div>
-
-            {/* Invite Code Alternative */}
-            <div className="pt-2 border-t border-border flex items-center justify-between text-xs text-muted">
-              <span>Alternativ per Code beitreten:</span>
-              <button
-                type="button"
-                onClick={copyInviteCode}
-                className="btn-action h-7 text-xs flex items-center gap-1.5"
-                title="Code kopieren"
-              >
-                <span>Code: {activeSpace.inviteCode}</span>
-                {copiedInvite ? (
-                  <Check className="w-3 h-3 text-status-ok" />
-                ) : (
-                  <Copy className="w-3 h-3 text-muted" />
-                )}
-              </button>
-            </div>
           </div>
         </div>
       )}

frontend/src/features/workspace/WorkspaceView.tsx

@@ -48,8 +48,9 @@ import {
   Share,
   Share2,
   Hash,
+  User as UserIcon,
 } from 'lucide-react';
-import { BlockType, Document, DocumentBlock, DocLockInfo, DocShare, TagDetails, TagSummary, User } from '../../lib/types';
+import { BlockType, Document, DocumentBlock, DocLockInfo, DocShare, TagDetails, TagSummary, Team, User } from '../../lib/types';
 import { api, getToken, triggerHaptic } from '../../lib/api';
 import { CodeBlockItem } from './CodeBlockItem';
 
@@ -165,6 +166,9 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
   const [showShareModal, setShowShareModal] = useState(false);
   const [docShares, setDocShares] = useState<DocShare[]>([]);
   const [collaborators, setCollaborators] = useState<User[]>([]);
+  const [shareTeams, setShareTeams] = useState<Team[]>([]);
+  const [addShareType, setAddShareType] = useState<'team' | 'user'>('team');
+  const [selectedShareTeamId, setSelectedShareTeamId] = useState('');
   const [shareTargetEmailOrId, setShareTargetEmailOrId] = useState('');
   const [sharePermission, setSharePermission] = useState<'read' | 'write'>('read');
   const [sharingLoading, setSharingLoading] = useState(false);
@@ -569,12 +573,14 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
     setShareError(null);
     setSharingLoading(true);
     try {
-      const [sharesList, usersList] = await Promise.all([
+      const [sharesList, usersList, teamsList] = await Promise.all([
         api.getDocShares(selectedDoc.id).catch(() => []),
         api.getCollaborators().catch(() => []),
+        api.getUserTeams().catch(() => []),
       ]);
       setDocShares(sharesList);
       setCollaborators(usersList);
+      setShareTeams(teamsList);
     } finally {
       setSharingLoading(false);
     }
@@ -583,27 +589,43 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
   const handleAddShare = async (e: React.FormEvent) => {
     e.preventDefault();
     if (!selectedDoc) return;
-    const target = shareTargetEmailOrId.trim();
-    if (!target) return;
     setSharingLoading(true);
     setShareError(null);
     try {
-      const isId = collaborators.some((u) => u.id === target);
+      if (addShareType === 'team') {
-      const newShare = await api.createDocShare(selectedDoc.id, {
+        if (!selectedShareTeamId) {
-        userId: isId ? target : undefined,
+          setShareError('Bitte ein Team oder eine Gruppe auswählen');
-        email: !isId ? target : undefined,
+          setSharingLoading(false);
-        permission: sharePermission,
+          return;
-      });
+        }
-      setDocShares((prev) => [...prev.filter((s) => s.userId !== newShare.userId), newShare]);
+        await api.createDocShare(selectedDoc.id, {
-      setShareTargetEmailOrId('');
+          teamId: selectedShareTeamId,
+          permission: sharePermission,
+        });
+        setSelectedShareTeamId('');
+      } else {
+        const target = shareTargetEmailOrId.trim();
+        if (!target) {
+          setShareError('Bitte einen Benutzer auswählen oder E-Mail eingeben');
+          setSharingLoading(false);
+          return;
+        }
+        const isId = collaborators.some((u) => u.id === target);
+        await api.createDocShare(selectedDoc.id, {
+          userId: isId ? target : undefined,
+          email: !isId ? target : undefined,
+          permission: sharePermission,
+        });
+        setShareTargetEmailOrId('');
+      }
+
+      const sharesList = await api.getDocShares(selectedDoc.id).catch(() => []);
+      setDocShares(sharesList);
       setSelectedDoc((prev) =>
         prev
           ? {
               ...prev,
-              sharedWith: [
+              sharedWith: sharesList,
-                ...(prev.sharedWith || []).filter((s) => s.userId !== newShare.userId),
-                newShare,
-              ],
             }
           : prev
       );
@@ -3608,52 +3630,123 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
             {/* If current user is owner: can add shares and manage permissions */}
             {selectedDoc.isOwner !== false ? (
               <div className="space-y-4">
-                <form onSubmit={handleAddShare} className="space-y-2.5 p-3 bg-panel-elevated border border-border rounded-card">
+                <form onSubmit={handleAddShare} className="space-y-3 p-3 bg-panel-elevated border border-border rounded-card">
-                  <div className="text-xs font-semibold text-main">Neuen Nutzer einladen / berechtigen</div>
+                  <div className="flex items-center justify-between gap-2">
-                  <div className="flex flex-col sm:flex-row gap-2">
+                    <span className="text-xs font-semibold text-main">Freigabe hinzufügen:</span>
-                    <select
+                    <div className="flex items-center gap-1">
-                      value={shareTargetEmailOrId}
+                      <button
-                      onChange={(e) => setShareTargetEmailOrId(e.target.value)}
+                        type="button"
-                      className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs flex-1 cursor-pointer"
+                        onClick={() => {
-                    >
+                          setAddShareType('team');
-                      <option value="" className="bg-panel text-muted">Nutzer auswählen oder Email eingeben…</option>
+                          setShareTargetEmailOrId('');
-                      {collaborators
+                        }}
-                        .filter((u) => u.id !== currentUser?.id && !docShares.some((s) => s.userId === u.id))
+                        className={`h-7 px-2.5 text-xs rounded-btn font-medium flex items-center gap-1 border transition-colors ${
-                        .map((u) => (
+                          addShareType === 'team'
-                          <option key={u.id} value={u.id} className="bg-panel text-main">
+                            ? 'bg-panel border-accent text-main'
-                            {u.displayName || u.email} ({u.email})
+                            : 'bg-canvas border-border text-muted hover:text-main'
-                          </option>
+                        }`}
-                        ))}
+                      >
-                    </select>
+                        <Users className="w-3 h-3 text-accent" />
-                    <select
+                        <span>Team / Gruppe</span>
-                      value={sharePermission}
+                      </button>
-                      onChange={(e) => setSharePermission(e.target.value as 'read' | 'write')}
+                      <button
-                      className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full sm:w-40 cursor-pointer"
+                        type="button"
-                    >
+                        onClick={() => {
-                      <option value="read" className="bg-panel text-main">Nur Lesen (read)</option>
+                          setAddShareType('user');
-                      <option value="write" className="bg-panel text-main">Schreiben (write)</option>
+                          setSelectedShareTeamId('');
-                    </select>
+                        }}
+                        className={`h-7 px-2.5 text-xs rounded-btn font-medium flex items-center gap-1 border transition-colors ${
+                          addShareType === 'user'
+                            ? 'bg-panel border-accent text-main'
+                            : 'bg-canvas border-border text-muted hover:text-main'
+                        }`}
+                      >
+                        <UserIcon className="w-3 h-3 text-accent" />
+                        <span>Einzelner Benutzer</span>
+                      </button>
+                    </div>
                   </div>
 
-                  {/* Direct Email fallback if user not in list */}
+                  {addShareType === 'team' ? (
-                  {(!shareTargetEmailOrId || !collaborators.some((u) => u.id === shareTargetEmailOrId)) && (
+                    <div className="flex flex-col sm:flex-row gap-2">
-                    <input
+                      <select
-                      type="email"
+                        value={selectedShareTeamId}
-                      placeholder="Oder E-Mail-Adresse direkt eingeben…"
+                        onChange={(e) => setSelectedShareTeamId(e.target.value)}
-                      value={shareTargetEmailOrId}
+                        className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs flex-1 cursor-pointer"
-                      onChange={(e) => setShareTargetEmailOrId(e.target.value)}
+                      >
-                      className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full"
+                        <option value="" className="bg-panel text-muted">-- Team / Gruppe auswählen --</option>
-                    />
+                        {shareTeams.map((t) => (
+                          <option key={t.id} value={t.id} className="bg-panel text-main">
+                            👥 {t.name} ({t.members?.length || 1} Mitglieder)
+                          </option>
+                        ))}
+                      </select>
+                      <select
+                        value={sharePermission}
+                        onChange={(e) => setSharePermission(e.target.value as 'read' | 'write')}
+                        className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full sm:w-40 cursor-pointer"
+                      >
+                        <option value="read" className="bg-panel text-main">Nur Lesen (read)</option>
+                        <option value="write" className="bg-panel text-main">Schreiben (write)</option>
+                      </select>
+                    </div>
+                  ) : (
+                    <div className="space-y-2">
+                      <div className="flex flex-col sm:flex-row gap-2">
+                        <select
+                          value={shareTargetEmailOrId}
+                          onChange={(e) => setShareTargetEmailOrId(e.target.value)}
+                          className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs flex-1 cursor-pointer"
+                        >
+                          <option value="" className="bg-panel text-muted">Nutzer auswählen oder Email eingeben…</option>
+                          {collaborators
+                            .filter((u) => u.id !== currentUser?.id && !docShares.some((s) => s.userId === u.id))
+                            .map((u) => (
+                              <option key={u.id} value={u.id} className="bg-panel text-main">
+                                👤 {u.displayName || u.email} ({u.email})
+                              </option>
+                            ))}
+                        </select>
+                        <select
+                          value={sharePermission}
+                          onChange={(e) => setSharePermission(e.target.value as 'read' | 'write')}
+                          className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full sm:w-40 cursor-pointer"
+                        >
+                          <option value="read" className="bg-panel text-main">Nur Lesen (read)</option>
+                          <option value="write" className="bg-panel text-main">Schreiben (write)</option>
+                        </select>
+                      </div>
+
+                      {/* Direct Email fallback if user not in list */}
+                      {(!shareTargetEmailOrId || !collaborators.some((u) => u.id === shareTargetEmailOrId)) && (
+                        <input
+                          type="email"
+                          placeholder="Oder E-Mail-Adresse direkt eingeben…"
+                          value={shareTargetEmailOrId}
+                          onChange={(e) => setShareTargetEmailOrId(e.target.value)}
+                          className="input-field h-8 px-2.5 bg-input text-main border border-border rounded-btn focus:outline-none focus:border-accent text-xs w-full"
+                        />
+                      )}
+                    </div>
                   )}
 
                   <div className="flex justify-end pt-1">
                     <button
                       type="submit"
-                      disabled={sharingLoading || !shareTargetEmailOrId.trim()}
+                      disabled={
+                        sharingLoading ||
+                        (addShareType === 'team' ? !selectedShareTeamId : !shareTargetEmailOrId.trim())
+                      }
                       className="btn-primary h-8 px-3 text-xs flex items-center gap-1.5"
                     >
                       <Plus className="w-3.5 h-3.5" />
-                      <span>Freigeben</span>
+                      <span>
+                        {sharingLoading
+                          ? 'Wird geteilt…'
+                          : addShareType === 'team'
+                          ? 'Team freigeben'
+                          : 'Benutzer freigeben'}
+                      </span>
                     </button>
                   </div>
                 </form>

frontend/src/lib/api.ts

@@ -514,7 +514,7 @@ export const api = {
 
   async createDocShare(
     docId: string,
-    payload: { userId?: string; email?: string; permission: 'read' | 'write' }
+    payload: { userId?: string; email?: string; teamId?: string; permission: 'read' | 'write' }
   ): Promise<DocShare> {
     return request<DocShare>(`/api/v1/documents/${docId}/shares`, {
       method: 'POST',
@@ -592,7 +592,7 @@ export const api = {
     });
   },
 
-  async addSpaceMember(spaceId: string, target: { userId?: string; email?: string; role?: string }): Promise<SpaceMember> {
+  async addSpaceMember(spaceId: string, target: { userId?: string; email?: string; teamId?: string; role?: string }): Promise<SpaceMember> {
     return request<SpaceMember>(`/api/v1/spaces/${spaceId}/members`, {
       method: 'POST',
       body: JSON.stringify(target),

internal/api/server.go

@@ -921,18 +921,46 @@ func (s *Server) handleCreateDocShare(w http.ResponseWriter, r *http.Request) {
 	var req struct {
 		UserID     string `json:"userId"`
 		Email      string `json:"email"`
+		TeamID     string `json:"teamId"`
 		Permission string `json:"permission"` // read | write
 	}
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
 		writeError(w, http.StatusBadRequest, "Ungültiges JSON")
 		return
 	}
+
+	if req.TeamID != "" {
+		members, err := s.store.GetTeamMembers(req.TeamID)
+		if err != nil {
+			writeError(w, http.StatusBadRequest, "Team nicht gefunden")
+			return
+		}
+		var lastShare *domain.DocShare
+		for _, tm := range members {
+			if tm.UserID == userID {
+				continue
+			}
+			share, err := s.store.CreateDocShare(userID, docID, tm.UserID, req.Permission)
+			if err == nil && share != nil {
+				lastShare = share
+				s.wsHub.BroadcastToUser(share.UserID, "DOC_SHARED", share)
+				s.wsHub.BroadcastDocEvent(docID, "DOC_SHARED", share)
+			}
+		}
+		if lastShare != nil {
+			writeJSON(w, http.StatusCreated, lastShare)
+		} else {
+			writeJSON(w, http.StatusOK, map[string]bool{"success": true})
+		}
+		return
+	}
+
 	target := req.UserID
 	if target == "" {
 		target = req.Email
 	}
 	if target == "" {
-		writeError(w, http.StatusBadRequest, "Benutzer-ID oder E-Mail erforderlich")
+		writeError(w, http.StatusBadRequest, "Benutzer-ID, E-Mail oder Team erforderlich")
 		return
 	}
 
@@ -1089,18 +1117,47 @@ func (s *Server) handleAddSpaceMember(w http.ResponseWriter, r *http.Request) {
 	var req struct {
 		UserID string `json:"userId"`
 		Email  string `json:"email"`
+		TeamID string `json:"teamId"`
 		Role   string `json:"role"`
 	}
 	if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
 		writeError(w, http.StatusBadRequest, "Ungültiges JSON")
 		return
 	}
+
+	if req.Role != "owner" && req.Role != "editor" && req.Role != "viewer" {
+		req.Role = "editor"
+	}
+
+	if req.TeamID != "" {
+		members, err := s.store.GetTeamMembers(req.TeamID)
+		if err != nil {
+			writeError(w, http.StatusBadRequest, "Team nicht gefunden")
+			return
+		}
+		var lastMember *domain.SpaceMember
+		for _, tm := range members {
+			member, err := s.store.AddSpaceMember(currentUserID, spaceID, tm.UserID, req.Role)
+			if err == nil && member != nil {
+				lastMember = member
+				s.wsHub.BroadcastToUser(member.UserID, "SPACE_JOINED", map[string]interface{}{"spaceId": spaceID})
+				s.wsHub.Broadcast(spaceID, "", "MEMBER_ADDED", member)
+			}
+		}
+		if lastMember != nil {
+			writeJSON(w, http.StatusCreated, lastMember)
+		} else {
+			writeJSON(w, http.StatusOK, map[string]bool{"success": true})
+		}
+		return
+	}
+
 	target := req.UserID
 	if target == "" {
 		target = req.Email
 	}
 	if target == "" {
-		writeError(w, http.StatusBadRequest, "Benutzer-ID, Benutzername oder E-Mail erforderlich")
+		writeError(w, http.StatusBadRequest, "Benutzer-ID, Benutzername, E-Mail oder Team erforderlich")
 		return
 	}
 

internal/api/server_test.go

@@ -618,6 +618,44 @@ func TestSpaceMembersDirectInvitationAPI(t *testing.T) {
 	if rec.Code != http.StatusOK {
 		t.Fatalf("expected 200 OK for remove member, got %d: %s", rec.Code, rec.Body.String())
 	}
+
+	// 5. Test adding a team to a space
+	team, err := store.CreateTeam("", "WG Team", "Haushalt")
+	if err != nil {
+		t.Fatalf("failed to create team: %v", err)
+	}
+	_ = store.AddTeamMember(team.ID, normalUser.ID, "member")
+
+	addTeamBody := []byte(`{"teamId":"` + team.ID + `","role":"editor"}`)
+	req = httptest.NewRequest(http.MethodPost, "/api/v1/spaces/"+createdSpace.ID+"/members", bytes.NewReader(addTeamBody))
+	req.Header.Set("Authorization", "Bearer "+adminToken)
+	req.Header.Set("Content-Type", "application/json")
+	rec = httptest.NewRecorder()
+	router.ServeHTTP(rec, req)
+	if rec.Code != http.StatusCreated && rec.Code != http.StatusOK {
+		t.Fatalf("expected 201 or 200 for add space team, got %d: %s", rec.Code, rec.Body.String())
+	}
+
+	// User should see the space again because their team was added
+	req = httptest.NewRequest(http.MethodGet, "/api/v1/spaces", nil)
+	req.Header.Set("Authorization", "Bearer "+userToken)
+	rec = httptest.NewRecorder()
+	router.ServeHTTP(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("expected 200 OK for user spaces after team add, got %d", rec.Code)
+	}
+	userSpaces = nil
+	_ = json.Unmarshal(rec.Body.Bytes(), &userSpaces)
+	found = false
+	for _, s := range userSpaces {
+		if s.ID == createdSpace.ID {
+			found = true
+			break
+		}
+	}
+	if !found {
+		t.Fatalf("expected space %s to be visible to user via team, got %+v", createdSpace.ID, userSpaces)
+	}
 }
 
 func TestWorkspaceTagsAPI(t *testing.T) {

internal/storage/sqlite.go

@@ -2977,6 +2977,24 @@ func (s *Store) CreateTeam(orgID, name, description string) (*domain.Team, error
 	if name == "" {
 		return nil, errors.New("team name required")
 	}
+	orgID = strings.TrimSpace(orgID)
+	if orgID == "" {
+		orgID = "default"
+	}
+
+	var orgExists int
+	_ = s.db.QueryRow(`SELECT COUNT(*) FROM organizations WHERE id = ?`, orgID).Scan(&orgExists)
+	if orgExists == 0 {
+		var ownerID string
+		_ = s.db.QueryRow(`SELECT id FROM users ORDER BY created_at ASC LIMIT 1`).Scan(&ownerID)
+		if ownerID != "" {
+			_, _ = s.db.Exec(
+				`INSERT OR IGNORE INTO organizations (id, name, owner_id, created_at) VALUES (?, ?, ?, ?)`,
+				orgID, "Standard", ownerID, domain.NowISO(),
+			)
+		}
+	}
+
 	team := &domain.Team{
 		ID:          domain.NewID("team"),
 		OrgID:       orgID,