fix: ocg_router single-threaded HTTPServer blocks all requests on large body — switch to ThreadingHTTPServer

gateway/scripts/ocg_router.py

@@ -21,7 +21,7 @@ OpenAI 兼容代理，背后池化 6 个 OpenCode Go API key。
 """
 
 import os, sys, json, time, logging, threading
-from http.server import HTTPServer, BaseHTTPRequestHandler
+from http.server import ThreadingHTTPServer, BaseHTTPRequestHandler
 from urllib.request import Request, urlopen, HTTPError
 from urllib.error import URLError
 from datetime import datetime, timezone
@@ -651,8 +651,8 @@ def main():
     refresh_thread = threading.Thread(target=_bg_refresh, name="ocg_router_refresh", daemon=True)
     refresh_thread.start()
 
-    # 启动 HTTP 服务
-    server = HTTPServer((LISTEN_HOST, LISTEN_PORT), RouterHandler)
+    # 启动 HTTP 服务（ThreadingHTTPServer — 多线程，避免大请求阻塞 /api/status 等监控端点）
+    server = ThreadingHTTPServer((LISTEN_HOST, LISTEN_PORT), RouterHandler)
     log.info("ocg_router 启动 → http://%s:%d", LISTEN_HOST, LISTEN_PORT)
     log.info("keys loaded: %d (%d healthy)", len(_keys),
              sum(1 for k in _keys if _key_health_score(k["key_id"]) < 888))