fix(native-messaging): add retry budget and poll for test connection result

- Add MAX_RECONNECT_ATTEMPTS (10) to prevent infinite reconnect loops
  on unclassified permanent failures. After exhausting retries, state
  transitions to "error" requiring explicit user action to retry.
- Test Connection now polls for up to 5s after triggering reconnect,
  waiting for the async connection to settle before showing the result.

Author: LeiShi1313

src/entries/background/utils/nativeMessaging.ts

@@ -6,6 +6,7 @@ const INSTANCE_ID_KEY = "ptd_native_instance_id";
 const ENABLED_KEY = "ptd_native_bridge_enabled";
 const RECONNECT_BASE_MS = 1000;
 const RECONNECT_MAX_MS = 30000;
+const MAX_RECONNECT_ATTEMPTS = 10;
 
 /** Errors that indicate the native host is not installed — no point retrying. */
 const FATAL_ERRORS = [
@@ -113,9 +114,19 @@ function disconnect(intentional: boolean) {
 function scheduleReconnect() {
   clearReconnectTimer();
   reconnectAttempt++;
+
+  if (reconnectAttempt > MAX_RECONNECT_ATTEMPTS) {
+    state = "error";
+    lastError = `Gave up after ${MAX_RECONNECT_ATTEMPTS} reconnect attempts`;
+    console.debug("[PTD] Native bridge exceeded max reconnect attempts, giving up.");
+    return;
+  }
+
   const delay = Math.min(RECONNECT_BASE_MS * 2 ** reconnectAttempt, RECONNECT_MAX_MS);
   state = "retrying";
-  console.debug(`[PTD] Native bridge reconnecting in ${delay}ms (attempt ${reconnectAttempt})...`);
+  console.debug(
+    `[PTD] Native bridge reconnecting in ${delay}ms (attempt ${reconnectAttempt}/${MAX_RECONNECT_ATTEMPTS})...`,
+  );
   reconnectTimer = setTimeout(connect, delay);
 }
 

src/entries/options/views/Settings/SetBase/NativeBridgeWindow.vue

@@ -75,10 +75,26 @@ async function toggleEnabled(newValue: boolean) {
   }
 }
 
+async function waitForSettledState(maxMs = 5000, intervalMs = 500) {
+  const transientStates: BridgeState[] = ["connecting", "retrying"];
+  const start = Date.now();
+  while (Date.now() - start < maxMs) {
+    await new Promise((r) => setTimeout(r, intervalMs));
+    await refreshStatus();
+    if (!transientStates.includes(status.value.state)) {
+      return;
+    }
+  }
+}
+
 async function testConnection() {
   testLoading.value = true;
   try {
     status.value = await sendMessage("nativeBridgeReconnect", undefined);
+    // Poll until state settles (connected/error) or timeout
+    if (status.value.state === "connecting") {
+      await waitForSettledState();
+    }
   } catch (e: any) {
     console.debug("[PTD] Reconnect failed:", e);
   } finally {