Fix worker-only database architecture and Vue Proxy serialization

- Implement worker-only database access to eliminate double migrations
- Add parameter serialization in usePlatformService to prevent Capacitor "object could not be cloned" errors
- Fix infinite logging loop with circuit breaker in databaseUtil
- Use dynamic imports in WebPlatformService to prevent worker thread errors
- Add higher-level database methods (getContacts, getSettings) to composable
- Eliminate Vue Proxy objects through JSON serialization and Object.freeze protection

Resolves Proxy(Array) serialization failures and worker context conflicts across Web/Capacitor/Electron platforms.

src/views/AccountViewView.vue

@@ -1214,31 +1214,35 @@ export default class AccountViewView extends Vue {
       this.loadingProfile = false;
     }
 
-    try {
-      /**
-       * Beware! I've seen where this "ready" never resolves.
-       */
-      const registration = await navigator.serviceWorker?.ready;
-      this.subscription = await registration.pushManager.getSubscription();
-      if (!this.subscription) {
-        if (this.notifyingNewActivity || this.notifyingReminder) {
-          // the app thought there was a subscription but there isn't, so fix the settings
-          this.turnOffNotifyingFlags();
+    // Only check service worker on web platform - Capacitor/Electron don't support it
+    if (!Capacitor.isNativePlatform()) {
+      try {
+        /**
+         * Service workers only exist on web platforms
+         */
+        const registration = await navigator.serviceWorker?.ready;
+        this.subscription = await registration.pushManager.getSubscription();
+        if (!this.subscription) {
+          if (this.notifyingNewActivity || this.notifyingReminder) {
+            // the app thought there was a subscription but there isn't, so fix the settings
+            this.turnOffNotifyingFlags();
+          }
         }
+      } catch (error) {
+        this.$notify(
+          {
+            group: "alert",
+            type: "warning",
+            title: "Cannot Set Notifications",
+            text: "This browser does not support notifications. Use Chrome, or install this to the home screen, or try other suggestions on the 'Troubleshoot your notifications' page.",
+          },
+          7000,
+        );
       }
-      /**
-       * Beware! I've seen where we never get to this point because "ready" never resolves.
-       */
-    } catch (error) {
-      this.$notify(
-        {
-          group: "alert",
-          type: "warning",
-          title: "Cannot Set Notifications",
-          text: "This browser does not support notifications. Use Chrome, or install this to the home screen, or try other suggestions on the 'Troubleshoot your notifications' page.",
-        },
-        7000,
-      );
+    } else {
+      // On native platforms (Capacitor/Electron), skip service worker checks
+      // Native notifications are handled differently
+      this.subscription = null;
     }
     this.passkeyExpirationDescription = tokenExpiryTimeDescription();
   }