ODS 完成

etl_billiards/config/settings.py

@@ -49,6 +49,13 @@ class AppConfig:
                 f"@{cfg['db']['host']}:{cfg['db']['port']}/{cfg['db']['name']}"
             )
         
+        # connect_timeout 限定 1-20 秒
+        try:
+            timeout_sec = int(cfg["db"].get("connect_timeout_sec") or 5)
+        except Exception:
+            raise SystemExit("db.connect_timeout_sec 必须为整数")
+        cfg["db"]["connect_timeout_sec"] = max(1, min(timeout_sec, 20))
+
         # 会话参数
         cfg["db"].setdefault("session", {})
         sess = cfg["db"]["session"]