Added My Schedule tab in attendance screen

Allow 1 Day, Whole Week and Date Range swapping

lib/providers/pass_slip_provider.dart

@@ -78,6 +78,7 @@ class PassSlipController {
   Future<void> requestSlip({
     required String dutyScheduleId,
     required String reason,
+    DateTime? requestedStart,
   }) async {
     final userId = _client.auth.currentUser?.id;
     if (userId == null) throw Exception('Not authenticated');
@@ -87,6 +88,8 @@ class PassSlipController {
       'reason': reason,
       'status': 'pending',
       'requested_at': DateTime.now().toUtc().toIso8601String(),
+      if (requestedStart != null)
+        'requested_start': requestedStart.toUtc().toIso8601String(),
     };
 
     final insertedRaw = await _client
@@ -174,13 +177,29 @@ class PassSlipController {
     final userId = _client.auth.currentUser?.id;
     if (userId == null) throw Exception('Not authenticated');
 
+    // Determine slip start time based on requested_start
+    final nowUtc = DateTime.now().toUtc();
+    String slipStartIso = nowUtc.toIso8601String();
+
+    final row = await _client
+        .from('pass_slips')
+        .select('requested_start')
+        .eq('id', slipId)
+        .maybeSingle();
+    if (row != null && row['requested_start'] != null) {
+      final requestedStart = DateTime.parse(row['requested_start'] as String);
+      if (requestedStart.isAfter(nowUtc)) {
+        slipStartIso = requestedStart.toIso8601String();
+      }
+    }
+
     await _client
         .from('pass_slips')
         .update({
           'status': 'approved',
           'approved_by': userId,
-          'approved_at': DateTime.now().toUtc().toIso8601String(),
-          'slip_start': DateTime.now().toUtc().toIso8601String(),
+          'approved_at': nowUtc.toIso8601String(),
+          'slip_start': slipStartIso,
         })
         .eq('id', slipId);