feat: Update roleId assignment and filter past shifts in ShiftsBloc

apps/mobile/packages/features/staff/shifts/lib/src/data/repositories_impl/shifts_repository_impl.dart

@@ -246,7 +246,7 @@ class ShiftsRepositoryImpl implements ShiftsRepositoryInterface {
       await _dataConnect.createApplication(
          shiftId: shiftId,
          staffId: staffId,
-         roleId: role.id,
+         roleId: role.roleId,
          status: isInstantBook ? dc.ApplicationStatus.ACCEPTED : dc.ApplicationStatus.PENDING,
          origin: dc.ApplicationOrigin.STAFF,
       ).execute();

apps/mobile/packages/features/staff/shifts/lib/src/presentation/blocs/shifts/shifts_bloc.dart

@@ -55,7 +55,7 @@ class ShiftsBloc extends Bloc<ShiftsEvent, ShiftsState> {
         myShifts: myShiftsResult,
         pendingShifts: pendingResult,
         cancelledShifts: cancelledResult,
-        availableShifts: availableResult,
+        availableShifts: _filterPastShifts(availableResult),
         historyShifts: historyResult,
         searchQuery: '',
         jobType: 'all',
@@ -81,7 +81,7 @@ class ShiftsBloc extends Bloc<ShiftsEvent, ShiftsState> {
         ));
 
         emit(currentState.copyWith(
-          availableShifts: result,
+          availableShifts: _filterPastShifts(result),
           searchQuery: event.query ?? currentState.searchQuery,
           jobType: event.jobType ?? currentState.jobType,
         ));
@@ -90,4 +90,17 @@ class ShiftsBloc extends Bloc<ShiftsEvent, ShiftsState> {
       }
     }
   }
+
+  List<Shift> _filterPastShifts(List<Shift> shifts) {
+    final now = DateTime.now();
+    return shifts.where((shift) {
+      if (shift.date.isEmpty) return false;
+      try {
+        final shiftDate = DateTime.parse(shift.date);
+        return shiftDate.isAfter(now);
+      } catch (_) {
+        return false;
+      }
+    }).toList();
+  }
 }