Background location notification icon and a much more user friendly Location Tracking toggle

lib/screens/attendance/attendance_screen.dart

@@ -360,17 +360,13 @@ class _CheckInTabState extends ConsumerState<_CheckInTab> {
     final schedulesAsync = ref.watch(dutySchedulesProvider);
     final logsAsync = ref.watch(attendanceLogsProvider);
     final allowTracking = profile?.allowTracking ?? false;
-    // local state for optimistic switch update and to avoid flicker while the
-    // profile stream lags. Once the network request completes we keep the
-    // local value until the provider returns the same value.
-    bool effectiveTracking;
-    if (_trackingSaving) {
-      effectiveTracking = _trackingLocal;
-    } else if (_trackingLocal != allowTracking) {
-      effectiveTracking = _trackingLocal;
-    } else {
-      effectiveTracking = allowTracking;
-    }
+    // local state for optimistic switch update.  We only trust `_trackingLocal`
+    // while a save is in flight – after that the server-side value (`allowTracking`)
+    // is authoritative.  This ensures the toggle correctly reflects the persisted
+    // setting when the app restarts.
+    final bool effectiveTracking = _trackingSaving
+        ? _trackingLocal
+        : allowTracking;
 
     if (profile == null) {
       return const Center(child: CircularProgressIndicator());
@@ -938,6 +934,11 @@ class _CheckInTabState extends ConsumerState<_CheckInTab> {
             lat: position.latitude,
             lng: position.longitude,
           );
+      // automatically enable tracking when user checks in
+      try {
+        await ref.read(whereaboutsControllerProvider).setTracking(true);
+      } catch (_) {}
+      _trackingLocal = true; // reflect new state immediately
       // Update live position immediately on check-in
       ref.read(whereaboutsControllerProvider).updatePositionNow();
       if (mounted) {
@@ -1017,6 +1018,11 @@ class _CheckInTabState extends ConsumerState<_CheckInTab> {
             lng: position.longitude,
             justification: checkOutJustification,
           );
+      // automatically disable tracking when user checks out
+      try {
+        await ref.read(whereaboutsControllerProvider).setTracking(false);
+      } catch (_) {}
+      _trackingLocal = false;
       // Update live position immediately on check-out
       ref.read(whereaboutsControllerProvider).updatePositionNow();
       if (mounted) {