add start/business unit

lib/features/auth/presentation/pages/register_page.dart

@@ -14,6 +14,7 @@ import 'package:image_picker/image_picker.dart';
 import 'package:worker/core/constants/ui_constants.dart';
 import 'package:worker/core/theme/colors.dart';
 import 'package:worker/core/utils/validators.dart';
+import 'package:worker/features/auth/domain/entities/business_unit.dart';
 import 'package:worker/features/auth/presentation/widgets/phone_input_field.dart';
 import 'package:worker/features/auth/presentation/widgets/file_upload_card.dart';
 import 'package:worker/features/auth/presentation/widgets/role_dropdown.dart';
@@ -29,10 +30,13 @@ import 'package:worker/features/auth/presentation/widgets/role_dropdown.dart';
 /// - Terms and conditions checkbox
 ///
 /// Navigation:
-/// - From: Login page
+/// - From: Business unit selection page
 /// - To: OTP verification (broker/other) or pending approval (worker/dealer)
 class RegisterPage extends ConsumerStatefulWidget {
-  const RegisterPage({super.key});
+  /// Selected business unit from previous screen
+  final BusinessUnit? selectedBusinessUnit;
+
+  const RegisterPage({super.key, this.selectedBusinessUnit});
 
   @override
   ConsumerState<RegisterPage> createState() => _RegisterPageState();
@@ -235,6 +239,18 @@ class _RegisterPageState extends ConsumerState<RegisterPage> {
 
     try {
       // TODO: Implement actual registration API call
+      // Include widget.selectedBusinessUnit?.id in the API request
+      // Example:
+      // final result = await authRepository.register(
+      //   fullName: _fullNameController.text.trim(),
+      //   phone: _phoneController.text.trim(),
+      //   email: _emailController.text.trim(),
+      //   password: _passwordController.text,
+      //   role: _selectedRole,
+      //   businessUnitId: widget.selectedBusinessUnit?.id,
+      //   ...
+      // );
+
       // For now, simulate API delay
       await Future.delayed(const Duration(seconds: 2));