Fixed Leave rejection and approvals

lib/screens/attendance/attendance_screen.dart

@@ -16,6 +16,7 @@ import '../../models/profile.dart';
 import '../../providers/attendance_provider.dart';
 import '../../providers/debug_settings_provider.dart';
 import '../../providers/leave_provider.dart';
+import '../../screens/dashboard/dashboard_screen.dart';
 import '../../providers/pass_slip_provider.dart';
 import '../../providers/profile_provider.dart';
 import '../../providers/reports_provider.dart';
@@ -3796,6 +3797,8 @@ class _LeaveTabState extends ConsumerState<_LeaveTab> {
     setState(() => _submitting = true);
     try {
       await ref.read(leaveControllerProvider).approveLeave(leaveId);
+      ref.invalidate(leavesProvider);
+      ref.invalidate(dashboardMetricsProvider);
       if (mounted) {
         showSuccessSnackBar(context, 'Leave approved.');
       }
@@ -3812,6 +3815,8 @@ class _LeaveTabState extends ConsumerState<_LeaveTab> {
     setState(() => _submitting = true);
     try {
       await ref.read(leaveControllerProvider).rejectLeave(leaveId);
+      ref.invalidate(leavesProvider);
+      ref.invalidate(dashboardMetricsProvider);
       if (mounted) {
         showSuccessSnackBar(context, 'Leave rejected.');
       }
@@ -3828,6 +3833,8 @@ class _LeaveTabState extends ConsumerState<_LeaveTab> {
     setState(() => _submitting = true);
     try {
       await ref.read(leaveControllerProvider).cancelLeave(leaveId);
+      ref.invalidate(leavesProvider);
+      ref.invalidate(dashboardMetricsProvider);
       if (mounted) {
         showSuccessSnackBar(context, 'Leave cancelled.');
       }
@@ -4112,14 +4119,14 @@ class _FileLeaveDialogState extends ConsumerState<_FileLeaveDialog> {
       return;
     }
 
-    final startDt = DateTime(
+    var startDt = DateTime(
       _startDate!.year,
       _startDate!.month,
       _startDate!.day,
       _startTime!.hour,
       _startTime!.minute,
     );
-    final endDt = DateTime(
+    var endDt = DateTime(
       _startDate!.year,
       _startDate!.month,
       _startDate!.day,
@@ -4132,6 +4139,10 @@ class _FileLeaveDialogState extends ConsumerState<_FileLeaveDialog> {
       return;
     }
 
+    // convert to app timezone to avoid device-local mismatches
+    startDt = AppTime.toAppTime(startDt);
+    endDt = AppTime.toAppTime(endDt);
+
     setState(() => _submitting = true);
     try {
       await ref
@@ -4143,6 +4154,10 @@ class _FileLeaveDialogState extends ConsumerState<_FileLeaveDialog> {
             endTime: endDt,
             autoApprove: widget.isAdmin,
           );
+      // ensure UI and dashboard will refresh promptly even if realtime is
+      // delayed or temporarily disconnected
+      ref.invalidate(leavesProvider);
+      ref.invalidate(dashboardMetricsProvider);
       if (mounted) {
         Navigator.of(context).pop();
         widget.onSubmitted();