feat: Add env variable for monitor interval

monitor.py

@@ -229,6 +229,9 @@ if __name__ == "__main__":
     parser.add_argument("--test", action="store_true", help="Send a fake test notification and exit")
     args = parser.parse_args()
 
+    # Update interval from environment if provided as override
+    interval = int(os.getenv("MONITOR_INTERVAL", args.interval))
+
     if args.test:
         import random
         test_ip, test_name = random.choice(list(CLIENTS.items()))
@@ -239,10 +242,10 @@ if __name__ == "__main__":
         logger.info("Test notification sent. Exiting.")
         exit(0)
 
-    logger.info(f"AdGuard Monitor Service Started. Interval: {args.interval}s")
+    logger.info(f"AdGuard Monitor Service Started. Interval: {interval}s")
     logger.info(f"Monitoring {len(CLIENTS)} clients: {', '.join([f'{name} ({ip})' for ip, name in CLIENTS.items()])}")
     session = get_auth_session()
     
     while True:
         fetch_and_analyze(session, verbose=args.verbose)
-        time.sleep(args.interval)
+        time.sleep(interval)