feat(planting): 认种成功后检查实名认证状态

当CONTRACT_SIGNING_ENABLED=true时，认种成功后检查用户是否已完成实名认证：
- 如果未完成实名认证，显示提示弹窗引导用户去认证
- 如果已完成或功能未启用，按原有流程返回个人中心

新增:
- KycRequiredDialog 实名认证提示弹窗组件
- ContractSigningConfig 配置类和getConfig()方法
- kycServiceProvider 依赖注入

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/mobile-app/lib/core/di/injection_container.dart

@@ -14,6 +14,7 @@ import '../services/notification_service.dart';
 import '../services/system_config_service.dart';
 import '../services/contract_signing_service.dart';
 import '../services/contract_check_service.dart';
+import '../../features/kyc/data/kyc_service.dart';
 
 // Storage Providers
 final secureStorageProvider = Provider<SecureStorage>((ref) {
@@ -107,6 +108,12 @@ final contractCheckServiceProvider = Provider<ContractCheckService>((ref) {
   return ContractCheckService(contractSigningService: contractSigningService);
 });
 
+// KYC Service Provider (调用 identity-service)
+final kycServiceProvider = Provider<KycService>((ref) {
+  final apiClient = ref.watch(apiClientProvider);
+  return KycService(apiClient: apiClient);
+});
+
 // Override provider with initialized instance
 ProviderContainer createProviderContainer(LocalStorage localStorage) {
   return ProviderContainer(

frontend/mobile-app/lib/core/services/contract_signing_service.dart

@@ -153,6 +153,30 @@ class ContractSigningService {
 
   ContractSigningService({required ApiClient apiClient}) : _apiClient = apiClient;
 
+  /// 获取合同签署配置（公开接口，不需要认证）
+  /// 用于判断是否需要在认种前检查实名认证
+  Future<ContractSigningConfig> getConfig() async {
+    try {
+      debugPrint('[ContractSigningService] 获取合同签署配置');
+
+      final response = await _apiClient.get('/planting/contract-signing/config');
+
+      if (response.statusCode == 200) {
+        final data = response.data as Map<String, dynamic>;
+        if (data['success'] == true && data['data'] != null) {
+          return ContractSigningConfig.fromJson(data['data']);
+        }
+      }
+
+      // 默认启用合同签署
+      return ContractSigningConfig(contractSigningEnabled: true);
+    } catch (e) {
+      debugPrint('[ContractSigningService] 获取配置失败: $e');
+      // 获取失败时默认启用合同签署
+      return ContractSigningConfig(contractSigningEnabled: true);
+    }
+  }
+
   /// 获取待签署任务列表
   Future<List<ContractSigningTask>> getPendingTasks() async {
     try {

frontend/mobile-app/lib/features/planting/presentation/pages/planting_location_page.dart

@@ -3,7 +3,9 @@ import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
 import 'package:city_pickers/city_pickers.dart';
 import '../widgets/planting_confirm_dialog.dart';
+import '../widgets/kyc_required_dialog.dart';
 import '../../../../core/di/injection_container.dart';
+import '../../../../routes/route_paths.dart';
 
 /// 认种省市选择页面参数
 class PlantingLocationParams {
@@ -208,6 +210,37 @@ class _PlantingLocationPageState extends ConsumerState<PlantingLocationPage> {
     );
   }
 
+  /// 检查是否需要实名认证
+  /// 仅在合同签署功能启用时才需要检查
+  Future<bool> _checkKycRequirement() async {
+    try {
+      // 1. 获取合同签署配置
+      final contractSigningService = ref.read(contractSigningServiceProvider);
+      final config = await contractSigningService.getConfig();
+
+      // 如果合同签署功能未启用，不需要检查实名认证
+      if (!config.contractSigningEnabled) {
+        debugPrint('[PlantingLocationPage] 合同签署功能未启用，跳过实名认证检查');
+        return false;
+      }
+
+      // 2. 合同签署功能启用时，检查实名认证状态
+      final kycService = ref.read(kycServiceProvider);
+      final kycStatus = await kycService.getKycStatus();
+
+      // 检查层级1（实名认证）是否完成
+      final isVerified = kycStatus.level1.verified;
+      debugPrint('[PlantingLocationPage] 合同签署功能启用，实名认证状态: $isVerified');
+
+      // 返回是否需要去做实名认证（未完成实名认证则需要）
+      return !isVerified;
+    } catch (e) {
+      debugPrint('[PlantingLocationPage] 检查实名认证状态失败: $e');
+      // 检查失败时默认不阻止用户，让后端处理
+      return false;
+    }
+  }
+
   /// 提交认种请求
   Future<void> _submitPlanting() async {
     setState(() => _isSubmitting = true);
@@ -243,8 +276,22 @@ class _PlantingLocationPageState extends ConsumerState<PlantingLocationPage> {
           ),
         );
 
+        // 5. 认种成功后，检查是否需要实名认证（仅在合同签署功能启用时）
+        final needsKyc = await _checkKycRequirement();
+        if (needsKyc && mounted) {
+          // 显示实名认证提示弹窗
+          final goToKyc = await KycRequiredDialog.show(context: context);
+          if (goToKyc == true && mounted) {
+            // 跳转到实名认证页面
+            context.push(RoutePaths.kycEntry);
+            return;
+          }
+        }
+
         // 返回到个人中心
-        context.go('/profile');
+        if (mounted) {
+          context.go('/profile');
+        }
       }
     } catch (e) {
       debugPrint('认种失败: $e');

frontend/mobile-app/lib/features/planting/presentation/widgets/kyc_required_dialog.dart

@@ -0,0 +1,200 @@
+import 'package:flutter/material.dart';
+
+/// 未实名认证提示弹窗
+/// 当用户未完成实名认证但尝试确认认种时显示
+class KycRequiredDialog extends StatelessWidget {
+  const KycRequiredDialog({super.key});
+
+  /// 显示提示弹窗
+  /// 返回 true 表示用户选择去实名认证，false 表示取消
+  static Future<bool?> show({required BuildContext context}) {
+    return showDialog<bool>(
+      context: context,
+      barrierDismissible: true,
+      barrierColor: const Color(0x80000000),
+      builder: (context) => const KycRequiredDialog(),
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Dialog(
+      backgroundColor: Colors.transparent,
+      insetPadding: const EdgeInsets.symmetric(horizontal: 24),
+      child: Container(
+        width: double.infinity,
+        constraints: const BoxConstraints(maxWidth: 360),
+        decoration: BoxDecoration(
+          color: Colors.white,
+          borderRadius: BorderRadius.circular(16),
+          boxShadow: const [
+            BoxShadow(
+              color: Color(0x40000000),
+              blurRadius: 50,
+              offset: Offset(0, 25),
+              spreadRadius: -12,
+            ),
+          ],
+        ),
+        child: Stack(
+          children: [
+            // 主内容
+            Padding(
+              padding: const EdgeInsets.fromLTRB(24, 32, 24, 24),
+              child: Column(
+                mainAxisSize: MainAxisSize.min,
+                children: [
+                  // 图标
+                  _buildIcon(),
+                  const SizedBox(height: 16),
+                  // 标题
+                  _buildTitle(),
+                  const SizedBox(height: 12),
+                  // 说明文字
+                  _buildDescription(),
+                  const SizedBox(height: 24),
+                  // 按钮
+                  _buildButtons(context),
+                ],
+              ),
+            ),
+            // 右上角关闭按钮
+            Positioned(
+              top: 8,
+              right: 8,
+              child: GestureDetector(
+                onTap: () => Navigator.pop(context, false),
+                child: Container(
+                  width: 32,
+                  height: 32,
+                  decoration: BoxDecoration(
+                    color: const Color(0x0D000000),
+                    borderRadius: BorderRadius.circular(16),
+                  ),
+                  child: const Icon(
+                    Icons.close,
+                    size: 18,
+                    color: Color(0xFF8B5A2B),
+                  ),
+                ),
+              ),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+
+  /// 构建图标
+  Widget _buildIcon() {
+    return Container(
+      width: 64,
+      height: 64,
+      decoration: BoxDecoration(
+        color: const Color(0xFFFFF7E6),
+        borderRadius: BorderRadius.circular(32),
+      ),
+      child: const Center(
+        child: Icon(
+          Icons.verified_user_outlined,
+          color: Color(0xFFD4AF37),
+          size: 32,
+        ),
+      ),
+    );
+  }
+
+  /// 构建标题
+  Widget _buildTitle() {
+    return const Text(
+      '需要先完成实名认证',
+      style: TextStyle(
+        fontSize: 20,
+        fontFamily: 'Inter',
+        fontWeight: FontWeight.w700,
+        height: 1.3,
+        color: Color(0xFF5D4037),
+      ),
+      textAlign: TextAlign.center,
+    );
+  }
+
+  /// 构建说明文字
+  Widget _buildDescription() {
+    return const Text(
+      '为了保障您的权益，认种前需要完成实名认证。\n完成认证后即可继续认种。',
+      style: TextStyle(
+        fontSize: 14,
+        fontFamily: 'Inter',
+        height: 1.5,
+        color: Color(0xFF745D43),
+      ),
+      textAlign: TextAlign.center,
+    );
+  }
+
+  /// 构建按钮
+  Widget _buildButtons(BuildContext context) {
+    return Column(
+      children: [
+        // 去实名认证按钮
+        SizedBox(
+          width: double.infinity,
+          child: GestureDetector(
+            onTap: () => Navigator.pop(context, true),
+            child: Container(
+              height: 48,
+              decoration: BoxDecoration(
+                color: const Color(0xFFD4AF37),
+                borderRadius: BorderRadius.circular(8),
+              ),
+              child: const Center(
+                child: Text(
+                  '去实名认证',
+                  style: TextStyle(
+                    fontSize: 16,
+                    fontFamily: 'Inter',
+                    fontWeight: FontWeight.w600,
+                    height: 1.5,
+                    color: Colors.white,
+                  ),
+                ),
+              ),
+            ),
+          ),
+        ),
+        const SizedBox(height: 12),
+        // 稍后再说按钮
+        SizedBox(
+          width: double.infinity,
+          child: GestureDetector(
+            onTap: () => Navigator.pop(context, false),
+            child: Container(
+              height: 48,
+              decoration: BoxDecoration(
+                color: Colors.transparent,
+                borderRadius: BorderRadius.circular(8),
+                border: Border.all(
+                  color: const Color(0xFFD4AF37),
+                  width: 1,
+                ),
+              ),
+              child: const Center(
+                child: Text(
+                  '稍后再说',
+                  style: TextStyle(
+                    fontSize: 16,
+                    fontFamily: 'Inter',
+                    fontWeight: FontWeight.w600,
+                    height: 1.5,
+                    color: Color(0xFFD4AF37),
+                  ),
+                ),
+              ),
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+}