chore(qr): add visible debug output and version bump for device-side troubleshooting

- Bump version string in QRScannerDialog to include build number for cache-busting and verification
- Add debugMessage UI panel to display internal state and debug info directly in the dialog
- Add alert() and debugMessage updates at key points in QR scanner initialization for device-visible feedback

src/components/QRScanner/QRScannerDialog.vue

@@ -13,7 +13,7 @@
       >
         <div>
           <h3 class="text-lg font-medium text-gray-900">Scan QR Code</h3>
-          <span class="text-xs text-gray-500">v1.1.0</span>
+          <span class="text-xs text-gray-500">v1.1.0 build 00000</span>
         </div>
         <button
           class="text-gray-400 hover:text-gray-500"
@@ -197,6 +197,10 @@
           </div>
         </div>
       </div>
+
+      <div v-if="debugMessage" class="bg-yellow-200 text-black p-2 m-2 rounded">
+        {{ debugMessage }}
+      </div>
     </div>
   </div>
 </template>
@@ -251,6 +255,7 @@ export default class QRScannerDialog extends Vue {
   preferredCamera: "user" | "environment" = "environment";
   initializationStatus = "Checking camera access...";
   cameraStatus = "Initializing";
+  debugMessage = "";
 
   created() {
     logger.log("QRScannerDialog platform detection:", {
@@ -274,11 +279,8 @@ export default class QRScannerDialog extends Vue {
   }
 
   async onInit(promise: Promise<void>, attempt = 1): Promise<void> {
-    if (this.isNativePlatform) return;
-    this.isInitializing = true;
-    this.error = null;
-    this.initializationStatus = "Checking camera access...";
-
+    alert("onInit called, attempt: " + attempt);
+    this.debugMessage = "onInit called, attempt: " + attempt;
     let timeoutHit = false;
     const timeout = setTimeout(() => {
       timeoutHit = true;
@@ -286,6 +288,7 @@ export default class QRScannerDialog extends Vue {
       this.cameraStatus = "Ready (timeout fallback)";
       this.initializationStatus = "Camera ready (fallback)";
       alert("Timeout fallback triggered");
+      this.debugMessage = "Timeout fallback triggered";
     }, 4000);
 
     try {
@@ -294,9 +297,13 @@ export default class QRScannerDialog extends Vue {
         clearTimeout(timeout);
         this.isInitializing = false;
         this.cameraStatus = "Ready";
+        alert("Promise resolved before timeout");
+        this.debugMessage = "Promise resolved before timeout";
       }
     } catch (error) {
       clearTimeout(timeout);
+      alert("Promise rejected: " + (error instanceof Error ? error.message : error));
+      this.debugMessage = "Promise rejected: " + (error instanceof Error ? error.message : error);
       if (attempt < 3) {
         // Retry after a short delay
         setTimeout(() => this.onInit(promise, attempt + 1), 1500);