锁定移动扫码失败响应

移动扫码失败统一返回稳定 host_error

移动扫码 overlay 不再向 H5 透出相机权限细节

移动壳测试和配置检查反查扫码失败边界

apps/mobile-shell/src/shell/QrScannerOverlay.test.tsx

@@ -113,7 +113,7 @@ describe('QrScannerOverlay', () => {
 
     await expect(scanPromise).rejects.toMatchObject({
       code: 'host_error',
-      message: 'camera permission denied',
+      message: 'qr scanner unavailable',
     });
     expect(overlayHarness.cameraViewProps.current).toBeNull();
   });
@@ -128,7 +128,7 @@ describe('QrScannerOverlay', () => {
 
     await expect(scanPromise).rejects.toMatchObject({
       code: 'host_error',
-      message: 'camera permission unavailable',
+      message: 'qr scanner unavailable',
     });
     expect(warnSpy).toHaveBeenCalledWith(
       'mobile QR scanner permission request failed',

apps/mobile-shell/src/shell/QrScannerOverlay.tsx

@@ -44,7 +44,7 @@ export function QrScannerOverlay() {
           return;
         }
         if (!permission.granted) {
-          failQrCodeScan('camera permission denied');
+          failQrCodeScan();
           return;
         }
         setHasPermission(true);
@@ -52,7 +52,7 @@ export function QrScannerOverlay() {
       .catch((error: unknown) => {
         if (!disposed) {
           logQrScannerPermissionFailure(error);
-          failQrCodeScan('camera permission unavailable');
+          failQrCodeScan();
         }
       });