feat: add graceful shutdown mechanism to stop guardian after configuration re-application

wa-guardian.js

@@ -31,6 +31,7 @@ let isWaiting = false;
 let hasShownWaitMessage = false;
 let last515At = 0;
 let lastConnectedAt = 0;
+let shouldStop = false;
 
 function extractErrorMessage(msg) {
   if (!msg || typeof msg !== "object") return "Unknown error";
@@ -142,6 +143,7 @@ async function callRpc(ws, method, params) {
 }
 
 async function checkStatus() {
+  if (shouldStop) return;
   if (isWaiting) return;
   if (lastConnectedAt && Date.now() - lastConnectedAt < SUCCESS_COOLDOWN_MS)
     return;
@@ -205,6 +207,9 @@ async function checkStatus() {
         });
         console.log("[guardian] Configuration re-applied.");
       }
+
+      shouldStop = true;
+      setTimeout(() => process.exit(0), 1000);
     } else if (
       !message.includes("No active") &&
       !message.includes("Still waiting")