feat: add ShiftAssignmentCard widget and StaffShifts module

- Implemented ShiftAssignmentCard widget for displaying shift assignments with client details, pay calculation, and confirmation actions.
- Created StaffShiftsModule to manage dependencies, routes, and use cases related to staff shifts.
- Added necessary dependencies in pubspec.yaml and generated pubspec.lock.

apps/mobile/packages/domain/lib/krow_domain.dart

@@ -18,16 +18,17 @@ export 'src/entities/business/business.dart';
 export 'src/entities/business/business_setting.dart';
 export 'src/entities/business/hub.dart';
 export 'src/entities/business/hub_department.dart';
-export 'src/entities/business/biz_contract.dart';
-export 'src/entities/business/vendor.dart';
 
-// Events & Shifts
+// Events & Assignments
 export 'src/entities/events/event.dart';
 export 'src/entities/events/event_shift.dart';
 export 'src/entities/events/event_shift_position.dart';
 export 'src/entities/events/assignment.dart';
 export 'src/entities/events/work_session.dart';
 
+// Shifts
+export 'src/entities/shifts/shift.dart';
+
 // Orders & Requests
 export 'src/entities/orders/order_type.dart';
 export 'src/entities/orders/one_time_order.dart';

apps/mobile/packages/domain/lib/src/entities/shifts/shift.dart

@@ -0,0 +1,91 @@
+import 'package:equatable/equatable.dart';
+
+class Shift extends Equatable {
+  final String id;
+  final String title;
+  final String clientName;
+  final String? logoUrl;
+  final double hourlyRate;
+  final String location;
+  final String locationAddress;
+  final String date;
+  final String startTime;
+  final String endTime;
+  final String createdDate;
+  final bool? tipsAvailable;
+  final bool? travelTime;
+  final bool? mealProvided;
+  final bool? parkingAvailable;
+  final bool? gasCompensation;
+  final String? description;
+  final String? instructions;
+  final List<ShiftManager>? managers;
+  final double? latitude;
+  final double? longitude;
+  final String? status;
+  final int? durationDays; // For multi-day shifts
+
+  const Shift({
+    required this.id,
+    required this.title,
+    required this.clientName,
+    this.logoUrl,
+    required this.hourlyRate,
+    required this.location,
+    required this.locationAddress,
+    required this.date,
+    required this.startTime,
+    required this.endTime,
+    required this.createdDate,
+    this.tipsAvailable,
+    this.travelTime,
+    this.mealProvided,
+    this.parkingAvailable,
+    this.gasCompensation,
+    this.description,
+    this.instructions,
+    this.managers,
+    this.latitude,
+    this.longitude,
+    this.status,
+    this.durationDays,
+  });
+
+  @override
+  List<Object?> get props => [
+        id,
+        title,
+        clientName,
+        logoUrl,
+        hourlyRate,
+        location,
+        locationAddress,
+        date,
+        startTime,
+        endTime,
+        createdDate,
+        tipsAvailable,
+        travelTime,
+        mealProvided,
+        parkingAvailable,
+        gasCompensation,
+        description,
+        instructions,
+        managers,
+        latitude,
+        longitude,
+        status,
+        durationDays,
+      ];
+}
+
+class ShiftManager extends Equatable {
+  final String name;
+  final String phone;
+  final String? avatar;
+
+  const ShiftManager({required this.name, required this.phone, this.avatar});
+  
+  @override
+  List<Object?> get props => [name, phone, avatar];
+}