diff --git a/.claude/settings.local.json b/.claude/settings.local.json
index dbce671f..fa7c1c48 100644
--- a/.claude/settings.local.json
+++ b/.claude/settings.local.json
@@ -403,7 +403,8 @@
       "Bash(frontend/mobile-app/lib/features/contract_signing/ )",
       "Bash(frontend/mobile-app/lib/features/home/presentation/pages/home_shell_page.dart )",
       "Bash(git branch:*)",
-      "Bash(echo \"docker exec rwa-planting-service npx prisma db execute --stdin <<< \"\"SELECT template_id, version, title, is_active FROM contract_templates;\"\"\")"
+      "Bash(echo \"docker exec rwa-planting-service npx prisma db execute --stdin <<< \"\"SELECT template_id, version, title, is_active FROM contract_templates;\"\"\")",
+      "Bash(npm uninstall:*)"
     ],
     "deny": [],
     "ask": []
diff --git a/STKAITI.TTF b/STKAITI.TTF
new file mode 100644
index 00000000..50441161
Binary files /dev/null and b/STKAITI.TTF differ
diff --git a/frontend/mobile-app/lib/core/services/contract_signing_service.dart b/frontend/mobile-app/lib/core/services/contract_signing_service.dart
index 14f5a5aa..5f80fa8d 100644
--- a/frontend/mobile-app/lib/core/services/contract_signing_service.dart
+++ b/frontend/mobile-app/lib/core/services/contract_signing_service.dart
@@ -257,20 +257,34 @@ class ContractSigningService {
   Future<ContractSigningTask> markScrollComplete(String orderNo) async {
     try {
       debugPrint('[ContractSigningService] 标记已滚动到底部: $orderNo');
+      debugPrint('[ContractSigningService] 请求 URL: /planting/contract-signing/tasks/$orderNo/scroll-complete');
 
       final response = await _apiClient.post(
         '/planting/contract-signing/tasks/$orderNo/scroll-complete',
       );
 
+      debugPrint('[ContractSigningService] 响应状态码: ${response.statusCode}');
+      debugPrint('[ContractSigningService] 响应数据: ${response.data}');
+
       if (response.statusCode == 200) {
-        final data = response.data as Map<String, dynamic>;
-        debugPrint('[ContractSigningService] 滚动标记成功');
-        return ContractSigningTask.fromJson(data);
+        final responseData = response.data as Map<String, dynamic>;
+        if (responseData['success'] == true && responseData['data'] != null) {
+          final data = responseData['data'] as Map<String, dynamic>;
+          debugPrint('[ContractSigningService] 滚动标记成功，任务状态: ${data['status']}');
+          return ContractSigningTask.fromJson(data);
+        }
+        // 兼容直接返回任务数据的情况
+        if (responseData['orderNo'] != null) {
+          debugPrint('[ContractSigningService] 滚动标记成功（直接返回数据）');
+          return ContractSigningTask.fromJson(responseData);
+        }
+        throw Exception('标记滚动失败: ${responseData['message'] ?? '响应格式错误'}');
       }
 
       throw Exception('标记滚动失败: ${response.statusCode}');
-    } catch (e) {
+    } catch (e, stackTrace) {
       debugPrint('[ContractSigningService] 标记滚动失败: $e');
+      debugPrint('[ContractSigningService] 堆栈: $stackTrace');
       rethrow;
     }
   }
@@ -279,20 +293,34 @@ class ContractSigningService {
   Future<ContractSigningTask> acknowledgeContract(String orderNo) async {
     try {
       debugPrint('[ContractSigningService] 确认法律效力: $orderNo');
+      debugPrint('[ContractSigningService] 请求 URL: /planting/contract-signing/tasks/$orderNo/acknowledge');
 
       final response = await _apiClient.post(
         '/planting/contract-signing/tasks/$orderNo/acknowledge',
       );
 
+      debugPrint('[ContractSigningService] 响应状态码: ${response.statusCode}');
+      debugPrint('[ContractSigningService] 响应数据: ${response.data}');
+
       if (response.statusCode == 200) {
-        final data = response.data as Map<String, dynamic>;
-        debugPrint('[ContractSigningService] 确认法律效力成功');
-        return ContractSigningTask.fromJson(data);
+        final responseData = response.data as Map<String, dynamic>;
+        if (responseData['success'] == true && responseData['data'] != null) {
+          final data = responseData['data'] as Map<String, dynamic>;
+          debugPrint('[ContractSigningService] 确认法律效力成功，任务状态: ${data['status']}');
+          return ContractSigningTask.fromJson(data);
+        }
+        // 兼容直接返回任务数据的情况
+        if (responseData['orderNo'] != null) {
+          debugPrint('[ContractSigningService] 确认法律效力成功（直接返回数据）');
+          return ContractSigningTask.fromJson(responseData);
+        }
+        throw Exception('确认法律效力失败: ${responseData['message'] ?? '响应格式错误'}');
       }
 
       throw Exception('确认法律效力失败: ${response.statusCode}');
-    } catch (e) {
+    } catch (e, stackTrace) {
       debugPrint('[ContractSigningService] 确认法律效力失败: $e');
+      debugPrint('[ContractSigningService] 堆栈: $stackTrace');
       rethrow;
     }
   }
@@ -309,31 +337,51 @@ class ContractSigningService {
   }) async {
     try {
       debugPrint('[ContractSigningService] 签署合同: $orderNo');
+      debugPrint('[ContractSigningService] 签名图片大小: ${signatureImage.length} bytes');
+      debugPrint('[ContractSigningService] IP: $ipAddress, 设备: $deviceInfo');
+      debugPrint('[ContractSigningService] 位置: lat=$latitude, lng=$longitude');
 
       // 将签名图片转为 base64
       final signatureBase64 = base64Encode(signatureImage);
+      debugPrint('[ContractSigningService] Base64 长度: ${signatureBase64.length}');
+
+      final requestData = {
+        'signatureImage': signatureBase64,
+        'ipAddress': ipAddress,
+        'deviceInfo': deviceInfo,
+        'userAgent': userAgent,
+        'latitude': latitude,
+        'longitude': longitude,
+      };
+      debugPrint('[ContractSigningService] 请求 URL: /planting/contract-signing/tasks/$orderNo/sign');
 
       final response = await _apiClient.post(
         '/planting/contract-signing/tasks/$orderNo/sign',
-        data: {
-          'signatureImage': signatureBase64,
-          'ipAddress': ipAddress,
-          'deviceInfo': deviceInfo,
-          'userAgent': userAgent,
-          'latitude': latitude,
-          'longitude': longitude,
-        },
+        data: requestData,
       );
 
+      debugPrint('[ContractSigningService] 响应状态码: ${response.statusCode}');
+      debugPrint('[ContractSigningService] 响应数据: ${response.data}');
+
       if (response.statusCode == 200) {
-        final data = response.data as Map<String, dynamic>;
-        debugPrint('[ContractSigningService] 签署成功');
-        return ContractSigningTask.fromJson(data);
+        final responseData = response.data as Map<String, dynamic>;
+        if (responseData['success'] == true && responseData['data'] != null) {
+          final data = responseData['data'] as Map<String, dynamic>;
+          debugPrint('[ContractSigningService] 签署成功，任务状态: ${data['status']}');
+          return ContractSigningTask.fromJson(data);
+        }
+        // 兼容直接返回任务数据的情况
+        if (responseData['orderNo'] != null) {
+          debugPrint('[ContractSigningService] 签署成功（直接返回数据）');
+          return ContractSigningTask.fromJson(responseData);
+        }
+        throw Exception('签署合同失败: ${responseData['message'] ?? '响应格式错误'}');
       }
 
       throw Exception('签署合同失败: ${response.statusCode}');
-    } catch (e) {
+    } catch (e, stackTrace) {
       debugPrint('[ContractSigningService] 签署合同失败: $e');
+      debugPrint('[ContractSigningService] 堆栈: $stackTrace');
       rethrow;
     }
   }
@@ -350,30 +398,50 @@ class ContractSigningService {
   }) async {
     try {
       debugPrint('[ContractSigningService] 补签合同: $orderNo');
+      debugPrint('[ContractSigningService] 签名图片大小: ${signatureImage.length} bytes');
+      debugPrint('[ContractSigningService] IP: $ipAddress, 设备: $deviceInfo');
+      debugPrint('[ContractSigningService] 位置: lat=$latitude, lng=$longitude');
 
       final signatureBase64 = base64Encode(signatureImage);
+      debugPrint('[ContractSigningService] Base64 长度: ${signatureBase64.length}');
+
+      final requestData = {
+        'signatureImage': signatureBase64,
+        'ipAddress': ipAddress,
+        'deviceInfo': deviceInfo,
+        'userAgent': userAgent,
+        'latitude': latitude,
+        'longitude': longitude,
+      };
+      debugPrint('[ContractSigningService] 请求 URL: /planting/contract-signing/tasks/$orderNo/late-sign');
 
       final response = await _apiClient.post(
         '/planting/contract-signing/tasks/$orderNo/late-sign',
-        data: {
-          'signatureImage': signatureBase64,
-          'ipAddress': ipAddress,
-          'deviceInfo': deviceInfo,
-          'userAgent': userAgent,
-          'latitude': latitude,
-          'longitude': longitude,
-        },
+        data: requestData,
       );
 
+      debugPrint('[ContractSigningService] 响应状态码: ${response.statusCode}');
+      debugPrint('[ContractSigningService] 响应数据: ${response.data}');
+
       if (response.statusCode == 200) {
-        final data = response.data as Map<String, dynamic>;
-        debugPrint('[ContractSigningService] 补签成功');
-        return ContractSigningTask.fromJson(data);
+        final responseData = response.data as Map<String, dynamic>;
+        if (responseData['success'] == true && responseData['data'] != null) {
+          final data = responseData['data'] as Map<String, dynamic>;
+          debugPrint('[ContractSigningService] 补签成功，任务状态: ${data['status']}');
+          return ContractSigningTask.fromJson(data);
+        }
+        // 兼容直接返回任务数据的情况
+        if (responseData['orderNo'] != null) {
+          debugPrint('[ContractSigningService] 补签成功（直接返回数据）');
+          return ContractSigningTask.fromJson(responseData);
+        }
+        throw Exception('补签合同失败: ${responseData['message'] ?? '响应格式错误'}');
       }
 
       throw Exception('补签合同失败: ${response.statusCode}');
-    } catch (e) {
+    } catch (e, stackTrace) {
       debugPrint('[ContractSigningService] 补签合同失败: $e');
+      debugPrint('[ContractSigningService] 堆栈: $stackTrace');
       rethrow;
     }
   }
diff --git a/frontend/mobile-app/macos/Flutter/GeneratedPluginRegistrant.swift b/frontend/mobile-app/macos/Flutter/GeneratedPluginRegistrant.swift
index 8111a6a0..ace84ae7 100644
--- a/frontend/mobile-app/macos/Flutter/GeneratedPluginRegistrant.swift
+++ b/frontend/mobile-app/macos/Flutter/GeneratedPluginRegistrant.swift
@@ -9,6 +9,7 @@ import connectivity_plus
 import device_info_plus
 import file_selector_macos
 import flutter_secure_storage_macos
+import geolocator_apple
 import local_auth_darwin
 import mobile_scanner
 import package_info_plus
@@ -24,6 +25,7 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   DeviceInfoPlusMacosPlugin.register(with: registry.registrar(forPlugin: "DeviceInfoPlusMacosPlugin"))
   FileSelectorPlugin.register(with: registry.registrar(forPlugin: "FileSelectorPlugin"))
   FlutterSecureStoragePlugin.register(with: registry.registrar(forPlugin: "FlutterSecureStoragePlugin"))
+  GeolocatorPlugin.register(with: registry.registrar(forPlugin: "GeolocatorPlugin"))
   LocalAuthPlugin.register(with: registry.registrar(forPlugin: "LocalAuthPlugin"))
   MobileScannerPlugin.register(with: registry.registrar(forPlugin: "MobileScannerPlugin"))
   FPPPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FPPPackageInfoPlusPlugin"))
diff --git a/frontend/mobile-app/windows/flutter/generated_plugin_registrant.cc b/frontend/mobile-app/windows/flutter/generated_plugin_registrant.cc
index 6ea4aa7b..f583544a 100644
--- a/frontend/mobile-app/windows/flutter/generated_plugin_registrant.cc
+++ b/frontend/mobile-app/windows/flutter/generated_plugin_registrant.cc
@@ -9,6 +9,7 @@
 #include <connectivity_plus/connectivity_plus_windows_plugin.h>
 #include <file_selector_windows/file_selector_windows.h>
 #include <flutter_secure_storage_windows/flutter_secure_storage_windows_plugin.h>
+#include <geolocator_windows/geolocator_windows.h>
 #include <local_auth_windows/local_auth_plugin.h>
 #include <permission_handler_windows/permission_handler_windows_plugin.h>
 #include <sentry_flutter/sentry_flutter_plugin.h>
@@ -22,6 +23,8 @@ void RegisterPlugins(flutter::PluginRegistry* registry) {
       registry->GetRegistrarForPlugin("FileSelectorWindows"));
   FlutterSecureStorageWindowsPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("FlutterSecureStorageWindowsPlugin"));
+  GeolocatorWindowsRegisterWithRegistrar(
+      registry->GetRegistrarForPlugin("GeolocatorWindows"));
   LocalAuthPluginRegisterWithRegistrar(
       registry->GetRegistrarForPlugin("LocalAuthPlugin"));
   PermissionHandlerWindowsPluginRegisterWithRegistrar(
diff --git a/frontend/mobile-app/windows/flutter/generated_plugins.cmake b/frontend/mobile-app/windows/flutter/generated_plugins.cmake
index 434e0737..2c1d7009 100644
--- a/frontend/mobile-app/windows/flutter/generated_plugins.cmake
+++ b/frontend/mobile-app/windows/flutter/generated_plugins.cmake
@@ -6,6 +6,7 @@ list(APPEND FLUTTER_PLUGIN_LIST
   connectivity_plus
   file_selector_windows
   flutter_secure_storage_windows
+  geolocator_windows
   local_auth_windows
   permission_handler_windows
   sentry_flutter
diff --git a/榴莲树认种权益协议.pdf b/榴莲树认种权益协议.pdf
new file mode 100644
index 00000000..0c369945
Binary files /dev/null and b/榴莲树认种权益协议.pdf differ