feat: 升级至 v0.3.7 — 前后端状态同步与错误处理全量修复

核心引擎修复:
- CE-1: 上下文压缩摘要 role 从 system 改为 user，避免被 adapter 过滤
- CE-2: 工具失败时优先使用 error 字段（engine/openai-format/ollama 三处）
- P0-1: DeadLoopError 终止时正确传 error 参数，前端可见 ERROR 事件
- MT-1: 新增 waitForAbort 方法，abortSession 等待 run 结束再返回
- MT-2: TERMINATED 状态到达时标记步骤完成，避免 Trace Viewer 转圈
- MT-3: 压缩边界检测孤立 tool 消息，避免 API 400 错误
- isRetryableError 与 catch 分支统一 toLowerCase

IPC 与主进程修复:
- P0-2: createAdapter 配置缺失返回 null，FALLBACK_ADAPTER 兜底
- P0-3: reloadAdapter 失败返回 success:false 通知前端
- P1-5: 校验失败发 ERROR+DONE 流事件，防止 isStreaming 卡死
- P1-6: configLoaded 标志，配置加载前禁用发送按钮
- P1-7: MCP initialize 移到 agentLoop 后，完成后同步工具
- P2-11: beforeLoad 在 loadURL 前注册 IPC handler
- P2-12: provider 切换竞态保护

前端状态同步修复:
- clearSessions 后同步清空前端会话与消息状态
- clearMemories 通过 memoryVersion 触发 MemoryViewer 重新加载
- ContextMenu 4 个 session 操作补全 IPC 调用与 try/catch
- useConfig 配置保存失败回滚 UI 并提示
- handleToggle 工具切换失败回滚单个工具状态

错误处理全量补全:
- 所有 await window.metona 调用补全 try/catch 与 toast 反馈
- MCP addServer/toggleServer/removeServer 检查返回值
- showItemInFolder 检查返回值（handleOpen/handleOpenInFolder）
- sse-stream/ollama NDJSON 解析失败改为 log.warn
- adapter throwHttpError 带 status 属性供 isRetryableError 判断

electron/main.ts

@@ -38,6 +38,7 @@ import { DeepSeekAdapter } from './harness/adapters/deepseek.adapter';
 import { AgnesAdapter } from './harness/adapters/agnes-ai.adapter';
 import { MimoAdapter } from './harness/adapters/mimo.adapter';
 import { OllamaAdapter } from './harness/adapters/ollama.adapter';
+import type { IMetonaProviderAdapter } from './harness/types/metona-adapter';
 import {
   ReadFileTool, WriteFileTool, ListDirectoryTool, SearchFilesTool,
   WebSearchTool, WebFetchTool,
@@ -140,18 +141,22 @@ async function initialize(): Promise<void> {
   memoryManager.initialize();
 
   // ===== 步骤 4: Provider Adapter 工厂 =====
-  const createAdapter = () => {
+  // P0-2 修复: 配置缺失时返回 null 而非抛异常，让应用能启动到 Onboarding
+  const createAdapter = (): IMetonaProviderAdapter | null => {
     const provider = configService.get<string>('llm.provider') ?? '';
     const model = configService.get<string>('llm.model') ?? '';
     const apiKey = configService.get<string>('llm.apiKey') ?? '';
     const baseURL = configService.get<string>('llm.baseURL') ?? '';
 
+    // 配置不完整时返回 null（不抛异常，让应用能启动到 Onboarding）
     if (!provider || !baseURL || !model) {
-      log.warn('LLM not configured. Please set provider, baseURL, and model in Settings.');
+      log.warn('LLM not fully configured. Please set provider, baseURL, and model in Settings.');
+      return null;
     }
 
     if (!apiKey && provider !== 'ollama') {
-      throw new Error(`API key is required for provider "${provider || 'unknown'}". Please set it in Settings.`);
+      log.warn(`API key is required for provider "${provider}". Please set it in Settings.`);
+      return null;
     }
 
     // v0.3.1: 读取 Provider 对应的 contextWindow 配置（Ollama 不使用此字段）
@@ -168,7 +173,12 @@ async function initialize(): Promise<void> {
     }
   };
 
-  const adapter = createAdapter();
+  // 配置未就绪时的 fallback adapter — getContextWindow 返回安全值，send/sendStream 会报错但 P0-1 修复后前端可见
+  const FALLBACK_ADAPTER = new DeepSeekAdapter({
+    provider: '', baseURL: '', apiKey: '', defaultModel: '', contextWindow: 4096,
+  });
+
+  const adapter = createAdapter() ?? FALLBACK_ADAPTER;
 
   // ===== 步骤 5: 工作空间文件 + System Prompt =====
   const contextBuilder = new ContextBuilder();
@@ -242,9 +252,7 @@ async function initialize(): Promise<void> {
 
   // ===== MCP Manager =====
   const mcpManager = new MCPManager(() => db, toolRegistry);
-  mcpManager.initialize().catch((err) => {
-    log.warn('MCP Manager initialization error:', err);
-  });
+  // P1-7 修复: initialize() 移到 agentLoop 创建之后，完成后重新同步工具
 
   // ===== Hooks =====
   // v0.2.0: ConfirmationHook 注入到 preToolHooks 管道
@@ -285,6 +293,14 @@ async function initialize(): Promise<void> {
   agentLoop.setTools(toolRegistry.listTools());
   agentLoop.setWorkspacePath(workspaceInfo.path);
 
+  // P1-7 修复: MCP 初始化在 agentLoop 创建后执行，完成后重新同步工具到 AgentLoop
+  mcpManager.initialize().then(() => {
+    agentLoop.setTools(toolRegistry.listTools());
+    log.info('[MCP] Tools registered and synced to AgentLoop');
+  }).catch((err) => {
+    log.warn('MCP Manager initialization error:', err);
+  });
+
   // ===== Memory Consolidator（会话结束 AI 提取重要记忆到 MEMORY.md）=====
   const memoryConsolidator = new MemoryConsolidator(adapter, workspaceService);
 
@@ -343,6 +359,17 @@ async function initialize(): Promise<void> {
 
       // 配置变化 — 重建 adapter
       const newAdapter = createAdapter();
+      if (!newAdapter) {
+        log.warn('[CONFIG] Cannot create adapter: LLM config incomplete (provider/apiKey/baseURL/model)');
+        // 不更新 lastConfigSig，下次还会尝试
+        if (mainWindow && !mainWindow.isDestroyed()) {
+          mainWindow.webContents.send('toast:show', {
+            type: 'warning',
+            message: 'LLM 配置不完整，请在设置中补全 Provider、API Key、Base URL 和 Model',
+          });
+        }
+        return false;
+      }
       agentLoop.setAdapter(newAdapter);
       memoryConsolidator.setAdapter(newAdapter);
       // Provider 切换时同步 contextLength 和 contextWindow
@@ -399,10 +426,21 @@ async function initialize(): Promise<void> {
     id: 'main',
     workspacePath: workspaceInfo.path,
     title: 'MetonaAI Desktop',
+    // P2-11 修复: 在 loadURL 之前注册 IPC handler，消除渲染进程加载与 IPC 注册的时序窗口
+    beforeLoad: (win) => {
+      confirmationHook.setMainWindow(win);
+      registerAllIPCHandlers(
+        win, sessionService, configService, workspaceService,
+        contextBuilder, agentLoop, toolRegistry, auditService,
+        sessionRecorder, memoryManager, mcpManager, reloadAdapter,
+        promptDefender, outputValidator,
+        confirmationHook, memoryConsolidator, orchestrator,
+      );
+    },
   });
 
-  // v0.2.0: 为 ConfirmationHook 注入主窗口（用于向渲染进程发送确认请求）
-  confirmationHook.setMainWindow(mainWindow);
+  // P2-11 修复: ConfirmationHook.setMainWindow 已在 beforeLoad 中调用，此处无需重复
+  // （beforeLoad 在 loadURL 之前执行，确保 IPC handler 注册时 mainWindow 已注入）
 
   // ===== 系统托盘 =====
   const resourcesPath = join(__dirname, '../../assets');
@@ -432,15 +470,6 @@ async function initialize(): Promise<void> {
     );
   });
 
-  // ===== 注册 IPC =====
-  registerAllIPCHandlers(
-    mainWindow, sessionService, configService, workspaceService,
-    contextBuilder, agentLoop, toolRegistry, auditService,
-    sessionRecorder, memoryManager, mcpManager, reloadAdapter,
-    promptDefender, outputValidator,
-    confirmationHook, memoryConsolidator, orchestrator,
-  );
-
   // TODO: Initialize UpdateService for auto-update functionality
   // const updateService = new UpdateService();
   // updateService.initialize(mainWindow);