feat: Add refresh token mechanism and sync request handling in home screen

lib/screens/home_screen.dart

@@ -17,16 +17,20 @@ class HomeScreen extends StatefulWidget {
     super.key,
     required this.repository,
     required this.onOpenSettings,
+    required this.onRequestSync,
     this.onVaultInvalid,
     this.syncStatus = SyncStatus.idle,
     this.syncErrorMessage,
+    this.refreshToken = 0,
   });
 
   final NoteRepository repository;
   final VoidCallback onOpenSettings;
+  final Future<void> Function() onRequestSync;
   final Future<void> Function()? onVaultInvalid;
   final SyncStatus syncStatus;
   final String? syncErrorMessage;
+  final int refreshToken;
 
   @override
   State<HomeScreen> createState() => _HomeScreenState();
@@ -52,6 +56,14 @@ class _HomeScreenState extends State<HomeScreen> {
     _loadNotes();
   }
 
+  @override
+  void didUpdateWidget(covariant HomeScreen oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (oldWidget.refreshToken != widget.refreshToken) {
+      _loadNotes();
+    }
+  }
+
   Future<void> _loadNotes() async {
     try {
       final List<Note> storedNotes = await widget.repository.loadNotes();
@@ -92,10 +104,9 @@ class _HomeScreenState extends State<HomeScreen> {
         _notes = updatedNotes;
       });
 
-      // Trigger sync after creating a note and refresh local list
+      // Trigger sync after creating a note.
       try {
-        await widget.repository.performSync();
-        await _loadNotes();
+        await widget.onRequestSync();
       } catch (_) {}
     }
   }
@@ -115,10 +126,9 @@ class _HomeScreenState extends State<HomeScreen> {
       _notes = updatedNotes;
     });
 
-    // Trigger sync after deleting a note and refresh local list
+    // Trigger sync after deleting a note.
     try {
-      await widget.repository.performSync();
-      await _loadNotes();
+      await widget.onRequestSync();
     } catch (_) {}
   }
 
@@ -171,10 +181,9 @@ class _HomeScreenState extends State<HomeScreen> {
         setState(() {
           _notes = _normalizeNotes(updatedNotes);
         });
-        // Trigger sync after editing a note and refresh local list
+        // Trigger sync after editing a note.
         try {
-          await widget.repository.performSync();
-          await _loadNotes();
+          await widget.onRequestSync();
         } catch (_) {}
       }
     }
@@ -212,10 +221,7 @@ class _HomeScreenState extends State<HomeScreen> {
         ? const _EmptyState()
         : RefreshIndicator(
             onRefresh: () async {
-              try {
-                await widget.repository.performSync();
-              } catch (_) {}
-              await _loadNotes();
+              await widget.onRequestSync();
             },
             child: MouseRegion(
               cursor: _isDragging
@@ -520,6 +526,7 @@ class _HomeScreenState extends State<HomeScreen> {
                 trailingWidget: SyncStatusIndicator(
                   status: widget.syncStatus,
                   errorMessage: widget.syncErrorMessage,
+                  onTap: widget.onRequestSync,
                 ),
                 onSearchChanged: (String query) {
                   setState(() {