Fix env save-and-restart by deferring PM2 restart until after HTTP response.

Co-authored-by: Cursor <cursoragent@cursor.com>

manual_trading_hub/hub_env_lib.py

@@ -2,8 +2,6 @@
 from __future__ import annotations
 
 import os
-import subprocess
-import sys
 from pathlib import Path
 from typing import Any
 
@@ -13,6 +11,7 @@ from lib.env.shared_env_lib import (
     build_ai_env_payload,
     restart_instances_then_hub_pm2,
 )
+from lib.instance.instance_pm2_lib import schedule_pm2_restart
 
 HUB_DIR = Path(__file__).resolve().parent
 
@@ -46,25 +45,4 @@ def restart_all_pm2() -> dict[str, Any]:
 
 def restart_hub_pm2() -> dict[str, Any]:
     app_name = (os.getenv("PM2_APP_NAME") or "").strip() or "manual-trading-hub"
-    if not sys.platform.startswith("linux"):
-        return {"ok": False, "msg": "仅 Linux 服务器支持 PM2 重启", "app": app_name}
-    try:
-        proc = subprocess.run(
-            ["pm2", "restart", app_name, "--update-env"],
-            capture_output=True,
-            text=True,
-            timeout=120,
-        )
-        ok = proc.returncode == 0
-        return {
-            "ok": ok,
-            "app": app_name,
-            "msg": (proc.stdout or proc.stderr or "").strip()[:500],
-            "returncode": proc.returncode,
-        }
-    except FileNotFoundError:
-        return {"ok": False, "msg": "未找到 pm2 命令", "app": app_name}
-    except subprocess.TimeoutExpired:
-        return {"ok": False, "msg": "pm2 restart 超时", "app": app_name}
-    except Exception as e:
-        return {"ok": False, "msg": str(e), "app": app_name}
+    return schedule_pm2_restart(app_name)