```

feat(main): 添加MCP工具列表API和优化服务器路由

- 新增getToolsList函数，提供完整的编辑器操作工具集
- 包含节点操作、场景管理、预制体创建等9个核心功能
- 重构HTTP服务器路由逻辑，分离工具列表和调用接口
- 移除冗余的CORS头设置，简化请求处理流程
- 统一错误处理和日志记录机制

feat(proxy): 实现MCP协议代理服务

- 创建mcp-proxy.js作为独立的协议转换层
- 支持initialize、tools/list、tools/call方法
- 实现与Cocos编辑器的HTTP通信桥接
- 提供详细的调试日志和错误处理机制
```

mcp-proxy.js

@@ -0,0 +1,101 @@
+const http = require('http');
+const COCOS_PORT = 3456; 
+
+function debugLog(msg) {
+    process.stderr.write(`[Proxy Debug] ${msg}\n`);
+}
+
+process.stdin.on('data', (data) => {
+    const lines = data.toString().split('\n');
+    lines.forEach(line => {
+        if (!line.trim()) return;
+        try {
+            const request = JSON.parse(line);
+            handleRequest(request);
+        } catch (e) {}
+    });
+});
+
+function handleRequest(req) {
+    const { method, id, params } = req;
+
+    if (method === 'initialize') {
+        sendToAI({
+            jsonrpc: "2.0", id: id,
+            result: {
+                protocolVersion: "2024-11-05",
+                capabilities: { tools: {} },
+                serverInfo: { name: "cocos-bridge", version: "1.0.0" }
+            }
+        });
+        return;
+    }
+
+    if (method === 'tools/list') {
+        // 使用 GET 获取列表
+        forwardToCocos('/list-tools', null, id, 'GET');
+        return;
+    }
+
+    if (method === 'tools/call') {
+        // 使用 POST 执行工具
+        forwardToCocos('/call-tool', {
+            name: params.name,
+            arguments: params.arguments
+        }, id, 'POST');
+        return;
+    }
+
+    if (id !== undefined) sendToAI({ jsonrpc: "2.0", id: id, result: {} });
+}
+
+function forwardToCocos(path, payload, id, method = 'POST') {
+    const postData = payload ? JSON.stringify(payload) : '';
+    
+    const options = {
+        hostname: '127.0.0.1',
+        port: COCOS_PORT,
+        path: path,
+        method: method,
+        headers: { 'Content-Type': 'application/json' }
+    };
+
+    if (postData) {
+        options.headers['Content-Length'] = Buffer.byteLength(postData);
+    }
+
+    const request = http.request(options, (res) => {
+        let resData = '';
+        res.on('data', d => resData += d);
+        res.on('end', () => {
+            try {
+                const cocosRes = JSON.parse(resData);
+                
+                // 检查关键字段
+                if (path === '/list-tools' && !cocosRes.tools) {
+                    // 如果报错，把 Cocos 返回的所有内容打印到 Trae 的 stderr 日志里
+                    debugLog(`CRITICAL: Cocos returned no tools. Received: ${resData}`);
+                    sendError(id, -32603, "Invalid Cocos response: missing tools array");
+                } else {
+                    sendToAI({ jsonrpc: "2.0", id: id, result: cocosRes });
+                }
+            } catch (e) {
+                debugLog(`JSON Parse Error. Cocos Sent: ${resData}`);
+                sendError(id, -32603, "Cocos returned non-JSON data");
+            }
+        });
+    });
+
+    request.on('error', (e) => {
+        debugLog(`Cocos is offline: ${e.message}`);
+        sendError(id, -32000, "Cocos Plugin Offline");
+    });
+
+    if (postData) request.write(postData);
+    request.end();
+}
+
+function sendToAI(obj) { process.stdout.write(JSON.stringify(obj) + '\n'); }
+function sendError(id, code, message) {
+    sendToAI({ jsonrpc: "2.0", id: id, error: { code, message } });
+}