feat(navigation): count open workspace todos and style tab badges as notification dots

frontend/src/App.tsx

@@ -102,6 +102,7 @@ export const App: React.FC = () => {
     tasksOpenCount: 0,
     tasksDoneCount: 0,
     docsCount: 0,
+    docsTodosOpenCount: 0,
     listsCount: 0,
     discardedCount: 0,
   });
@@ -478,18 +479,14 @@ 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>Triage</span>
                 {stats.inboxCount > 0 && (
-                <span
-                  className={
-                    activeTab === 'triage'
-                      ? 'badge-accent'
-                      : 'badge-neutral'
-                  }
-                >
+                  <span className="absolute -top-1.5 -right-1 min-w-[15px] h-[15px] px-0.5 rounded-full text-[9px] font-bold leading-none bg-accent text-on-accent flex items-center justify-center shadow-sm pointer-events-none">
                     {stats.inboxCount}
                   </span>
                 )}
+              </span>
             </button>
 
             <button
@@ -500,18 +497,14 @@ 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>Aufgaben</span>
                 {stats.tasksOpenCount > 0 && (
-                <span
-                  className={
-                    activeTab === 'tasks'
-                      ? 'badge-accent'
-                      : 'badge-neutral'
-                  }
-                >
+                  <span className="absolute -top-1.5 -right-1 min-w-[15px] h-[15px] px-0.5 rounded-full text-[9px] font-bold leading-none bg-accent text-on-accent flex items-center justify-center shadow-sm pointer-events-none">
                     {stats.tasksOpenCount}
                   </span>
                 )}
+              </span>
             </button>
 
             <button
@@ -522,15 +515,13 @@ 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>
-              <span
-                className={
-                  activeTab === 'workspace'
-                    ? 'badge-accent'
-                    : 'badge-neutral'
-                }
-              >
-                {stats.docsCount}
+                {(stats.docsTodosOpenCount ?? 0) > 0 && (
+                  <span className="absolute -top-1.5 -right-1 min-w-[15px] h-[15px] px-0.5 rounded-full text-[9px] font-bold leading-none bg-accent text-on-accent flex items-center justify-center shadow-sm pointer-events-none">
+                    {stats.docsTodosOpenCount}
+                  </span>
+                )}
               </span>
             </button>
 

frontend/src/features/workspace/WorkspaceView.tsx

@@ -260,6 +260,7 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
             }
           : prev
       );
+      onStatsChange();
     } catch (e: any) {
       if (e.message && e.message.includes('423')) {
         api.getDocLock(docToSave.id).then((res) => {
@@ -2162,9 +2163,15 @@ export const WorkspaceView: React.FC<WorkspaceViewProps> = ({
                                   type="checkbox"
                                   disabled={isReadOnly}
                                   checked={!!block.checked}
-                                  onChange={(e) =>
-                                    !isReadOnly && updateBlock(block.id, { checked: e.target.checked })
+                                  onChange={(e) => {
+                                    if (!isReadOnly && selectedDoc) {
+                                      const nextBlocks = selectedDoc.blocks.map((b) =>
+                                        b.id === block.id ? { ...b, checked: e.target.checked } : b
+                                      );
+                                      persistDocument({ ...selectedDoc, blocks: nextBlocks }, true);
+                                      onStatsChange();
                                     }
+                                  }}
                                   className={`w-4 h-4 checkbox-square flex-shrink-0 ${
                                     isReadOnly ? 'cursor-not-allowed opacity-60' : 'cursor-pointer'
                                   }`}

frontend/src/lib/types.ts

@@ -233,6 +233,7 @@ export interface DashboardStats {
   tasksOpenCount: number;
   tasksDoneCount: number;
   docsCount: number;
+  docsTodosOpenCount?: number;
   listsCount: number;
   discardedCount: number;
 }

internal/domain/models.go

@@ -334,6 +334,7 @@ type DashboardStats struct {
 	TasksOpenCount     int `json:"tasksOpenCount"`
 	TasksDoneCount     int `json:"tasksDoneCount"`
 	DocsCount          int `json:"docsCount"`
+	DocsTodosOpenCount int `json:"docsTodosOpenCount"`
 	ListsCount         int `json:"listsCount"`
 	DiscardedCount     int `json:"discardedCount"`
 }

internal/storage/sqlite.go

@@ -1910,6 +1910,31 @@ func (s *Store) GetDashboardStats(userID string) (*domain.DashboardStats, error)
 	_ = 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(`SELECT COUNT(*) FROM lists l JOIN space_members sm ON sm.space_id = l.space_id WHERE sm.user_id = ?`, userID).Scan(&st.ListsCount)
+
+	// Count open (uncompleted) To-Dos across accessible workspace documents (owned or shared)
+	docRows, err := s.db.Query(`
+		SELECT blocks_json FROM documents 
+		WHERE (user_id = ? OR id IN (SELECT doc_id FROM doc_shares WHERE user_id = ?))
+		  AND is_archived = 0`,
+		userID, userID,
+	)
+	if err == nil {
+		for docRows.Next() {
+			var bj string
+			if err := docRows.Scan(&bj); err == nil && bj != "" {
+				var blocks []domain.DocumentBlock
+				if err := json.Unmarshal([]byte(bj), &blocks); err == nil {
+					for _, b := range blocks {
+						if b.Type == "todo" && !b.Checked {
+							st.DocsTodosOpenCount++
+						}
+					}
+				}
+			}
+		}
+		_ = docRows.Close()
+	}
+
 	return st, nil
 }