fix(keep-notes): sidebar chevron, labels sync, batch org errors, perf guards

- Notebooks: chevron visible when expanded (remove overflow clip), functional expand state
- Labels: sync/cleanup by notebookId, reconcile after note move
- Settings: refresh notebooks after cleanup; label dialog routing
- ConnectionsBadge lazy-load; reminder check persistence; i18n keys

Made-with: Cursor

keep-notes/locales/en.json

@@ -33,6 +33,7 @@
     "reminders": "Reminders",
     "labels": "Labels",
     "editLabels": "Edit labels",
+    "noLabelsInNotebook": "No labels in this notebook yet",
     "archive": "Archive",
     "trash": "Trash"
   },
@@ -389,7 +390,9 @@
   "notification": {
     "shared": "shared \"{title}\"",
     "untitled": "Untitled",
-    "notifications": "Notifications"
+    "notifications": "Notifications",
+    "declined": "Share declined",
+    "removed": "Note removed from list"
   },
   "nav": {
     "home": "Home",
@@ -448,6 +451,12 @@
     "maintenanceDescription": "Tools to maintain your database health",
     "cleanTags": "Clean Orphan Tags",
     "cleanTagsDescription": "Remove tags that are no longer used by any notes",
+    "cleanupDone": "Synced {created} label record(s), removed {deleted} orphan(s)",
+    "cleanupNothing": "Nothing to do — labels already match your notes",
+    "cleanupWithErrors": "some operations failed",
+    "cleanupError": "Could not clean up labels",
+    "indexingComplete": "Indexing complete: {count} note(s) processed",
+    "indexingError": "Error during indexing",
     "semanticIndexing": "Semantic Indexing",
     "semanticIndexingDescription": "Generate vectors for all notes to enable intent-based search",
     "profile": "Profile",