fix: 优化count_tokens接口不受并发跟客户端限制

src/routes/droidRoutes.js

@@ -60,6 +60,49 @@ router.post('/claude/v1/messages', authenticateApiKey, async (req, res) => {
   }
 })
 
+router.post('/claude/v1/messages/count_tokens', authenticateApiKey, async (req, res) => {
+  try {
+    const requestBody = { ...req.body }
+    if ('stream' in requestBody) {
+      delete requestBody.stream
+    }
+    const sessionHash = sessionHelper.generateSessionHash(requestBody)
+
+    if (!hasDroidPermission(req.apiKey)) {
+      logger.security(
+        `🚫 API Key ${req.apiKey?.id || 'unknown'} 缺少 Droid 权限，拒绝访问 ${req.originalUrl}`
+      )
+      return res.status(403).json({
+        error: 'permission_denied',
+        message: '此 API Key 未启用 Droid 权限'
+      })
+    }
+
+    const result = await droidRelayService.relayRequest(
+      requestBody,
+      req.apiKey,
+      req,
+      res,
+      req.headers,
+      {
+        endpointType: 'anthropic',
+        sessionHash,
+        customPath: '/a/v1/messages/count_tokens',
+        skipUsageRecord: true,
+        disableStreaming: true
+      }
+    )
+
+    res.status(result.statusCode).set(result.headers).send(result.body)
+  } catch (error) {
+    logger.error('Droid Claude count_tokens relay error:', error)
+    res.status(500).json({
+      error: 'internal_server_error',
+      message: error.message
+    })
+  }
+})
+
 // OpenAI 端点 - /v1/responses
 router.post('/openai/v1/responses', authenticateApiKey, async (req, res) => {
   try {