feat: implement runway observations monitoring panel and Telegram alert utilities

frontend/components/dashboard/monitoring/monitor-refresh-policy.ts

@@ -1,5 +1,5 @@
 export const MONITOR_CITY_DETAIL_DEPTH = "panel" as const;
-export const MONITOR_REFRESH_INTERVAL_MS = 60_000;
+export const MONITOR_REFRESH_INTERVAL_MS = 300_000;
 
 export type MonitorRefreshTrigger = "initial" | "interval";
 

frontend/components/dashboard/scan-terminal/RunwayObservationsPanel.tsx

@@ -165,7 +165,7 @@ export function RunwayObservationsPanel() {
           ensureCityDetail(city.key, true, "panel"),
         ),
       );
-    }, 60_000);
+    }, 300_000);
     return () => {
       if (intervalRef.current) clearInterval(intervalRef.current);
     };