longer interval tick

src/surveillance/surveillance.service.ts

@@ -49,8 +49,8 @@ export class SurveillanceService implements OnModuleInit, OnModuleDestroy {
   // ─── Lifecycle ─────────────────────────────────────────────────────────────
 
   onModuleInit() {
-    this.logger.log('SurveillanceService booting — starting 500ms poll loop');
-    this.pollInterval = setInterval(() => this.tick(), 500);
+    this.logger.log('SurveillanceService booting — starting 1000ms poll loop');
+    this.pollInterval = setInterval(() => this.tick(), 1000);
   }
 
   onModuleDestroy() {