Implement Asia/Manila Time Zone

Handled saving of Relievers

lib/models/duty_schedule.dart

@@ -1,3 +1,5 @@
+import '../utils/app_time.dart';
+
 class DutySchedule {
   DutySchedule({
     required this.id,
@@ -9,6 +11,7 @@ class DutySchedule {
     required this.createdAt,
     required this.checkInAt,
     required this.checkInLocation,
+    required this.relieverIds,
   });
 
   final String id;
@@ -20,20 +23,30 @@ class DutySchedule {
   final DateTime createdAt;
   final DateTime? checkInAt;
   final Object? checkInLocation;
+  final List<String> relieverIds;
 
   factory DutySchedule.fromMap(Map<String, dynamic> map) {
+    final relieversRaw = map['reliever_ids'];
+    final relievers = relieversRaw is List
+        ? relieversRaw
+              .where((e) => e != null)
+              .map((entry) => entry.toString())
+              .where((s) => s.isNotEmpty)
+              .toList()
+        : <String>[];
     return DutySchedule(
       id: map['id'] as String,
       userId: map['user_id'] as String,
       shiftType: map['shift_type'] as String? ?? 'normal',
-      startTime: DateTime.parse(map['start_time'] as String),
-      endTime: DateTime.parse(map['end_time'] as String),
+      startTime: AppTime.parse(map['start_time'] as String),
+      endTime: AppTime.parse(map['end_time'] as String),
       status: map['status'] as String? ?? 'scheduled',
-      createdAt: DateTime.parse(map['created_at'] as String),
+      createdAt: AppTime.parse(map['created_at'] as String),
       checkInAt: map['check_in_at'] == null
           ? null
-          : DateTime.parse(map['check_in_at'] as String),
+          : AppTime.parse(map['check_in_at'] as String),
       checkInLocation: map['check_in_location'],
+      relieverIds: relievers,
     );
   }
 }