feat: add staff documents feature with document card and progress card

- Implemented DocumentCard widget to display individual staff documents with status and actions.
- Created DocumentsProgressCard widget to show overall verification progress of documents.
- Established StaffDocumentsModule for dependency injection and routing to documents page.
- Updated pubspec.yaml and pubspec.lock for new dependencies and configurations.

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

@@ -47,6 +47,9 @@ export 'src/entities/financial/invoice_item.dart';
 export 'src/entities/financial/invoice_decline.dart';
 export 'src/entities/financial/staff_payment.dart';
 
+// Profile
+export 'src/entities/profile/staff_document.dart';
+
 // Ratings & Penalties
 export 'src/entities/ratings/staff_rating.dart';
 export 'src/entities/ratings/penalty_log.dart';

apps/mobile/packages/domain/lib/src/entities/profile/staff_document.dart

@@ -0,0 +1,60 @@
+import 'package:equatable/equatable.dart';
+
+/// Status of a compliance document.
+enum DocumentStatus {
+  verified,
+  pending,
+  missing,
+  rejected,
+  expired
+}
+
+/// Represents a staff compliance document.
+class StaffDocument extends Equatable {
+  /// The unique identifier of the staff document record.
+  final String id;
+
+  /// The ID of the staff member.
+  final String staffId;
+
+  /// The ID of the document definition.
+  final String documentId;
+
+  /// The name of the document.
+  final String name;
+
+  /// A description of the document.
+  final String? description;
+
+  /// The status of the document.
+  final DocumentStatus status;
+
+  /// The URL of the uploaded document image/file.
+  final String? documentUrl;
+
+  /// The expiry date of the document.
+  final DateTime? expiryDate;
+
+  const StaffDocument({
+    required this.id,
+    required this.staffId,
+    required this.documentId,
+    required this.name,
+    this.description,
+    required this.status,
+    this.documentUrl,
+    this.expiryDate,
+  });
+
+  @override
+  List<Object?> get props => [
+        id,
+        staffId,
+        documentId,
+        name,
+        description,
+        status,
+        documentUrl,
+        expiryDate,
+      ];
+}