feat: 添加 Claude Code 遥测端点并优化日志级别

- 添加 /api/event_logging/batch 端点处理客户端遥测请求
- 将遥测相关请求日志改为 debug 级别，减少日志噪音

src/middleware/auth.js

@@ -1112,9 +1112,13 @@ const requestLogger = (req, res, next) => {
   const referer = req.get('Referer') || 'none'
 
   // 记录请求开始
+  const isDebugRoute = req.originalUrl.includes('event_logging')
   if (req.originalUrl !== '/health') {
-    // 避免健康检查日志过多
-    logger.info(`▶️ [${requestId}] ${req.method} ${req.originalUrl} | IP: ${clientIP}`)
+    if (isDebugRoute) {
+      logger.debug(`▶️ [${requestId}] ${req.method} ${req.originalUrl} | IP: ${clientIP}`)
+    } else {
+      logger.info(`▶️ [${requestId}] ${req.method} ${req.originalUrl} | IP: ${clientIP}`)
+    }
   }
 
   res.on('finish', () => {
@@ -1146,7 +1150,11 @@ const requestLogger = (req, res, next) => {
         logMetadata
       )
     } else if (req.originalUrl !== '/health') {
-      logger.request(req.method, req.originalUrl, res.statusCode, duration, logMetadata)
+      if (isDebugRoute) {
+        logger.debug(`🟢 ${req.method} ${req.originalUrl} - ${res.statusCode} (${duration}ms)`, logMetadata)
+      } else {
+        logger.request(req.method, req.originalUrl, res.statusCode, duration, logMetadata)
+      }
     }
 
     // API Key相关日志

src/routes/api.js

@@ -1362,5 +1362,10 @@ router.post('/v1/messages/count_tokens', authenticateApiKey, async (req, res) =>
   }
 })
 
+// Claude Code 客户端遥测端点 - 返回成功响应避免 404 日志
+router.post('/event_logging/batch', (req, res) => {
+  res.status(200).json({ success: true })
+})
+
 module.exports = router
 module.exports.handleMessagesRequest = handleMessagesRequest