Tweak QR code translations (#1347)

apps/mobile-app/app/(tabs)/settings/qr-confirm.tsx

@@ -11,6 +11,7 @@ import { ThemedButton } from '@/components/themed/ThemedButton';
 import { ThemedContainer } from '@/components/themed/ThemedContainer';
 import { ThemedScrollView } from '@/components/themed/ThemedScrollView';
 import { ThemedText } from '@/components/themed/ThemedText';
+import { UsernameDisplay } from '@/components/ui/UsernameDisplay';
 import { useApp } from '@/context/AppContext';
 import { useWebApi } from '@/context/WebApiContext';
 import NativeVaultManager from '@/specs/NativeVaultManager';
@@ -70,15 +71,13 @@ export default function QRConfirmScreen() : React.ReactNode {
       });
     } catch (error) {
       console.error('Mobile unlock error:', error);
-      let errorMsg = t('settings.qrScanner.mobileUnlock.genericError');
+      let errorMsg = t('common.errors.unknownErrorTryAgain');
 
       if (error instanceof Error) {
-        if (error.message.includes('ENCRYPTION_ERROR')) {
-          errorMsg = t('settings.qrScanner.mobileUnlock.vaultLocked');
-        } else if (error.message.includes('404')) {
+        if (error.message.includes('404')) {
           errorMsg = t('settings.qrScanner.mobileUnlock.requestExpired');
-        } else if (error.message.includes('401') || error.message.includes('403')) {
-          errorMsg = t('settings.qrScanner.mobileUnlock.unauthorized');
+        } else {
+          errorMsg = t('common.errors.unknownErrorTryAgain');
         }
       }
 
@@ -186,9 +185,13 @@ export default function QRConfirmScreen() : React.ReactNode {
     confirmationText: {
       fontSize: 16,
       lineHeight: 24,
-      marginBottom: 12,
+      marginBottom: 16,
       textAlign: 'center',
     },
+    usernameDisplayContainer: {
+      marginBottom: 12,
+      width: '100%',
+    },
     buttonContainer: {
       gap: 12,
       marginTop: 20,
@@ -223,8 +226,11 @@ export default function QRConfirmScreen() : React.ReactNode {
             {t('settings.qrScanner.mobileUnlock.confirmTitle')}
           </ThemedText>
           <ThemedText style={styles.confirmationText}>
-            {t('settings.qrScanner.mobileUnlock.confirmMessage', { username })}
+            {t('settings.qrScanner.mobileUnlock.confirmMessage')}
           </ThemedText>
+          <View style={styles.usernameDisplayContainer}>
+            <UsernameDisplay />
+          </View>
         </View>
 
         <View style={styles.buttonContainer}>

apps/mobile-app/app/(tabs)/settings/qr-result.tsx

@@ -94,7 +94,7 @@ export default function QRResultScreen() : React.ReactNode {
             <ThemedText style={styles.message}>
               {message || (isSuccess
                 ? t('settings.qrScanner.mobileUnlock.successDescription')
-                : t('settings.qrScanner.mobileUnlock.genericError'))}
+                : t('common.errors.unknownErrorTryAgain'))}
             </ThemedText>
           </View>
         </View>

apps/mobile-app/app/(tabs)/settings/qr-scanner.tsx

@@ -118,13 +118,13 @@ export default function QRScannerScreen() : React.ReactNode {
       setIsLoadingAfterScan(false);
 
       console.error('QR validation error:', error);
-      let errorMsg = t('settings.qrScanner.mobileUnlock.genericError');
+      let errorMsg = t('common.errors.unknownErrorTryAgain');
 
       if (error instanceof Error) {
         if (error.message.includes('404')) {
           errorMsg = t('settings.qrScanner.mobileUnlock.requestExpired');
-        } else if (error.message.includes('401') || error.message.includes('403')) {
-          errorMsg = t('settings.qrScanner.mobileUnlock.unauthorized');
+        } else {
+          errorMsg = t('common.errors.unknownErrorTryAgain');
         }
       }
 
@@ -138,6 +138,7 @@ export default function QRScannerScreen() : React.ReactNode {
 
   /**
    * Handle barcode scanned - validate request and navigate to confirmation.
+   * Only processes AliasVault QR codes, silently ignores others.
    */
   const handleBarcodeScanned = useCallback(({ data }: { data: string }) : void => {
     // Prevent multiple scans
@@ -148,21 +149,14 @@ export default function QRScannerScreen() : React.ReactNode {
     // Parse the QR code to determine its type
     const parsedData = parseQRCode(data);
 
+    // Silently ignore non-AliasVault QR codes
     if (!parsedData.type) {
-      Alert.alert(
-        t('settings.qrScanner.invalidQrCode'),
-        t('settings.qrScanner.notAliasVaultQr'),
-        [{ text: t('common.ok'), /**
-         * Go back to the settings tab.
-         */
-          onPress: (): void => router.back() }]
-      );
       return;
     }
 
     // Validate the request and navigate (with min 500ms loading)
     validateAndNavigate(parsedData);
-  }, [isLoadingAfterScan, t, validateAndNavigate]);
+  }, [isLoadingAfterScan, validateAndNavigate]);
 
   // Handle QR code URL passed from deep link (e.g., from native camera)
   useEffect(() => {

apps/mobile-app/i18n/locales/en.json

@@ -8,7 +8,7 @@
     "no": "No",
     "ok": "OK",
     "continue": "Continue",
-    "loading": "Loading...",
+    "loading": "Loading",
     "error": "Error",
     "success": "Success",
     "never": "Never",
@@ -395,6 +395,23 @@
         "failedToDelete": "Failed to delete account. Please try again.",
         "usernameNotFound": "Username not found. Please login again."
       }
+    },
+    "qrScanner": {
+      "title": "QR Code Scanner",
+      "scanningMessage": "Point your camera at the QR code",
+      "invalidQrCode": "Invalid QR Code",
+      "notAliasVaultQr": "This is not a valid AliasVault QR code. Please scan a QR code generated by AliasVault.",
+      "cameraPermissionTitle": "Camera Permission Required",
+      "cameraPermissionMessage": "Please allow camera access to scan QR codes.",
+      "mobileUnlock": {
+        "confirmTitle": "Confirm Login",
+        "confirmMessage": "You are about to log in on a remote device with your account. This other device will have full access to your vault. Only proceed if you trust this device.",
+        "successTitle": "Device Unlocked",
+        "successDescription": "The remote device has been successfully unlocked.",
+        "requestExpired": "This unlock request has expired. Please generate a new QR code.",
+        "authenticationFailed": "Authentication failed. Please try again.",
+        "authenticationRequired": "Authentication required to confirm this action."
+      }
     }
   },
   "navigation": {