fix(network): 添加Dio基础URL变更日志便于调试

feat(model): 增加ChatSessionModel.summary的安全解析方法

refactor(datasource): 重构AppRemoteDataSource.getAppInfo以正确处理网络错误

feat(settings): 在服务器设置页面添加本地存储支持和Android模拟器主机映射

Author: easychen

lib/core/network/dio_client.dart

@@ -23,6 +23,10 @@ class DioClient {
 
   void updateBaseUrl(String baseUrl) {
     _dio.options.baseUrl = baseUrl;
+    // Log base URL change for easier debugging during configuration updates
+    if (const bool.fromEnvironment('dart.vm.product') == false) {
+      print('[Dio] Base URL updated: $baseUrl');
+    }
   }
 
   void _setupInterceptors() {

lib/data/datasources/app_remote_datasource.dart

@@ -24,25 +24,40 @@ class AppRemoteDataSourceImpl implements AppRemoteDataSource {
 
   @override
   Future<AppInfoModel> getAppInfo({String? directory}) async {
-    try {
-      final queryParams = directory != null ? {'directory': directory} : <String, dynamic>{};
-      final response = await dio.get('/app/info', queryParameters: queryParams);
-      return AppInfoModel.fromJson(response.data);
-    } catch (e) {
-      print('获取应用信息时出错: $e');
-      // 返回默认的应用信息
-      return AppInfoModel(
-        hostname: 'localhost',
-        git: false,
-        path: AppPathModel(
-          config: '/config',
-          data: '/data',
-          root: '/',
-          cwd: '/app',
-          state: '/state',
-        ),
-      );
-    }
+    // Do NOT swallow network errors here.
+    // Align to OpenAPI: use /path and /config instead of /app/info.
+    // Let Dio throw exceptions so upper layers can handle connection status correctly.
+    final queryParams = directory != null
+        ? {'directory': directory}
+        : <String, dynamic>{};
+
+    // Fetch path info
+    final pathResp = await dio.get('/path', queryParameters: queryParams);
+
+    // Fetch config info (optional for future use)
+    final configResp = await dio.get('/config', queryParameters: queryParams);
+
+    final Map<String, dynamic> pathJson = pathResp.data as Map<String, dynamic>;
+
+    // Map OpenAPI Path schema to AppInfoModel expected structure.
+    // Where exact fields don't exist, provide sensible defaults.
+    final mapped = <String, dynamic>{
+      'hostname': 'OpenCode',
+      'git': false,
+      'path': {
+        'config': pathJson['config'] ?? '',
+        // There is no 'data' in Path schema; use worktree as a reasonable default.
+        'data': pathJson['worktree'] ?? '',
+        // Root is not explicitly defined; use worktree as root.
+        'root': pathJson['worktree'] ?? '',
+        // Use directory as current working directory.
+        'cwd': pathJson['directory'] ?? '',
+        'state': pathJson['state'] ?? '',
+      },
+      'time': null,
+    };
+
+    return AppInfoModel.fromJson(mapped);
   }
 
   @override

lib/data/models/chat_session_model.dart

@@ -24,6 +24,7 @@ class ChatSessionModel {
   final String? title;
   final String? version;
   final bool shared;
+  @JsonKey(fromJson: _summaryFromJson)
   final String? summary;
   final SessionPathModel? path;
   final SessionShareModel? share;
@@ -33,6 +34,20 @@ class ChatSessionModel {
 
   Map<String, dynamic> toJson() => _$ChatSessionModelToJson(this);
 
+  /// Safely parse summary from API which may return Map or String
+  static String? _summaryFromJson(dynamic value) {
+    if (value == null) return null;
+    if (value is String) return value;
+    if (value is Map<String, dynamic>) {
+      final additions = value['additions'];
+      final deletions = value['deletions'];
+      // Convert to a compact string for display
+      return 'additions: ${additions ?? 0}, deletions: ${deletions ?? 0}';
+    }
+    // Fallback to string conversion
+    return value.toString();
+  }
+
   /// 转换为领域实体
   ChatSession toDomain() {
     return ChatSession(

lib/data/models/chat_session_model.g.dart

@@ -1,8 +1,11 @@
 import 'package:flutter/material.dart';
+import 'package:flutter/foundation.dart';
 import 'package:provider/provider.dart';
 import '../providers/app_provider.dart';
 import '../../core/constants/app_constants.dart';
 import '../../core/constants/api_constants.dart';
+import '../../core/di/injection_container.dart';
+import '../../data/datasources/app_local_datasource.dart';
 
 /// Server settings page
 class ServerSettingsPage extends StatefulWidget {
@@ -23,6 +26,19 @@ class _ServerSettingsPageState extends State<ServerSettingsPage> {
     final appProvider = context.read<AppProvider>();
     _hostController.text = appProvider.serverHost;
     _portController.text = appProvider.serverPort.toString();
+
+    // Load saved server config from local storage and sync to UI/provider
+    Future.microtask(() async {
+      final local = sl<AppLocalDataSource>();
+      final savedHost = await local.getServerHost();
+      final savedPort = await local.getServerPort();
+      if (savedHost != null && savedPort != null && mounted) {
+        _hostController.text = savedHost;
+        _portController.text = savedPort.toString();
+        // Keep provider state consistent so other parts reflect the same values
+        appProvider.setServerConfig(savedHost, savedPort);
+      }
+    });
   }
 
   @override
@@ -228,13 +244,27 @@ class _ServerSettingsPageState extends State<ServerSettingsPage> {
     final host = _hostController.text.trim();
     final port = int.parse(_portController.text.trim());
 
+    // On Android emulator, localhost/127.0.0.1 should point to 10.0.2.2
+    // This mapping avoids accidental calls to the host machine's loopback.
+    var mappedHost = host;
+    final isAndroid = !kIsWeb && defaultTargetPlatform == TargetPlatform.android;
+    if (isAndroid && (host == '127.0.0.1' || host.toLowerCase() == 'localhost')) {
+      mappedHost = '10.0.2.2';
+    }
+
     final appProvider = context.read<AppProvider>();
-    final success = await appProvider.updateServerConfig(host, port);
+    final success = await appProvider.updateServerConfig(mappedHost, port);
 
     if (success && mounted) {
-      ScaffoldMessenger.of(
-        context,
-      ).showSnackBar(const SnackBar(content: Text('Settings saved')));
+      final info = 'Settings saved: http://$mappedHost:$port';
+      ScaffoldMessenger.of(context).showSnackBar(SnackBar(content: Text(info)));
+      if (mappedHost != host && mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(
+            content: Text('Android emulator detected: mapped localhost to 10.0.2.2'),
+          ),
+        );
+      }
     } else if (mounted) {
       ScaffoldMessenger.of(context).showSnackBar(
         SnackBar(