refactor: 移除多余依赖，统一 MUI 为唯一 UI 库

- 移除 radix-ui、clsx、tailwind-merge、class-variance-authority、react-router-dom

- 前后端全面适配 MUI 组件，清理残留 Tailwind 工具类引用

- 优化 Agent Loop 引擎、IPC 处理器、Provider Adapter 等后端模块

- 新增 Agent 网络工具通用设计文档 v2

electron/services/config.service.ts

@@ -41,7 +41,7 @@ export class ConfigService {
    */
   set(key: string, value: unknown): void {
     const db = this.getDB();
-    const jsonValue = typeof value === 'string' ? value : JSON.stringify(value);
+    const jsonValue = JSON.stringify(value);
 
     // 查询已有 category，避免 INSERT OR REPLACE 覆盖为默认值
     const existing = db.prepare('SELECT category FROM app_config WHERE key = ?').get(key) as ConfigRow | undefined;

electron/services/database.service.ts

@@ -227,16 +227,24 @@ export class DatabaseService {
     try {
       db.exec('ALTER TABLE messages ADD COLUMN attachments TEXT');
       log.info('[DB] Migration: added attachments column to messages');
-    } catch {
-      // 列已存在，忽略
+    } catch (error) {
+      // 只忽略 "duplicate column" 错误（列已存在），其他错误必须抛出
+      const msg = error instanceof Error ? error.message : String(error);
+      if (!msg.includes('duplicate column')) {
+        throw error;
+      }
     }
 
     // 迁移 2: audit_logs 表添加 iteration 列
     try {
       db.exec('ALTER TABLE audit_logs ADD COLUMN iteration INTEGER');
       log.info('[DB] Migration: added iteration column to audit_logs');
-    } catch {
-      // 列已存在，忽略
+    } catch (error) {
+      // 只忽略 "duplicate column" 错误（列已存在），其他错误必须抛出
+      const msg = error instanceof Error ? error.message : String(error);
+      if (!msg.includes('duplicate column')) {
+        throw error;
+      }
     }
   }
 

electron/services/session.service.ts

@@ -86,7 +86,7 @@ export class SessionService {
       ORDER BY pinned DESC, updated_at DESC
     `).all(archived ? 1 : 0) as SessionRow[];
 
-    return rows.map(this.toSessionInfo);
+    return rows.map((row) => this.toSessionInfo(row));
   }
 
   /**
@@ -183,7 +183,7 @@ export class SessionService {
       ORDER BY created_at ASC
     `).all(sessionId) as MessageRow[];
 
-    return rows.map(this.toMessageInfo);
+    return rows.map((row) => this.toMessageInfo(row));
   }
 
   /**
@@ -316,11 +316,22 @@ export class SessionService {
       role: row.role,
       content: row.content,
       reasoningContent: row.reasoning_content ?? undefined,
-      toolCalls: row.tool_calls ? JSON.parse(row.tool_calls) : undefined,
-      toolResult: row.tool_result ? JSON.parse(row.tool_result) : undefined,
-      attachments: row.attachments ? JSON.parse(row.attachments) : undefined,
+      toolCalls: row.tool_calls ? this.safeJsonParse(row.tool_calls) as unknown[] : undefined,
+      toolResult: row.tool_result ? this.safeJsonParse(row.tool_result) : undefined,
+      attachments: row.attachments ? this.safeJsonParse(row.attachments) as unknown[] : undefined,
       iteration: row.iteration ?? undefined,
       timestamp: row.created_at,
     };
   }
+
+  /**
+   * 安全 JSON 解析：解析失败时返回 undefined 而非抛出异常
+   */
+  private safeJsonParse(json: string): unknown {
+    try {
+      return JSON.parse(json);
+    } catch {
+      return undefined;
+    }
+  }
 }

electron/services/workspace.service.ts

@@ -40,8 +40,8 @@ const AUTO_CREATED_DIRS = ['logs', 'traces', '.metona'] as const;
 const MEMORY_TEMPLATE = `# MEMORY.md — AI 持久记忆
 #
 # 格式版本: 1.0
-# 创建时间: ${new Date().toISOString()}
-# 最后更新: ${new Date().toISOString()}
+# 创建时间: __CREATED_AT__
+# 最后更新: __UPDATED_AT__
 # 工作空间: __WORKSPACE_PATH__
 #
 # 此文件由 Metona Agent 自动维护，用户可手动编辑。
@@ -287,7 +287,11 @@ export class WorkspaceService {
 
     switch (fileName) {
       case 'MEMORY.md': {
-        const content = MEMORY_TEMPLATE.replace('__WORKSPACE_PATH__', this.workspacePath);
+        const now = new Date().toISOString();
+        const content = MEMORY_TEMPLATE
+          .replace('__WORKSPACE_PATH__', this.workspacePath)
+          .replace('__CREATED_AT__', now)
+          .replace('__UPDATED_AT__', now);
         writeFileSync(filePath, content, 'utf-8');
         break;
       }