fix(panel): define now before schedule-state loop (500 regression)

web/app.py

@@ -648,6 +648,7 @@ def index():
     sources.sort(key=lambda s: (0 if s.get("toggle_on") else 1, s["source"]))
 
     # macOS launchd 无 systemd 服务态:状态列统一用调度状态(active/disabled/none)
+    now = datetime.now()
     for s in sources:
         sched = pl.schedule_state(s["source"])
         s["active"] = {"active": "active", "disabled": "inactive"}.get(sched, "none")