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/scripts/check-config.mjs

@@ -2286,8 +2286,7 @@ for (const snippet of [
   'describe(\'QrScannerOverlay\'',
   'scanQrCode()',
   'requestCameraPermissionsAsync',
-  "message: 'camera permission denied'",
-  "message: 'camera permission unavailable'",
+  "message: 'qr scanner unavailable'",
   "message: 'qr scan cancelled'",
   "test('logs and rejects the active scan when camera permission request fails'",
   "'mobile QR scanner permission request failed'",
@@ -2344,6 +2343,7 @@ for (const scannerSnippet of [
   'ok(request, await scanQrCode())',
   'normalizeHostBridgeQrCodeValue',
   "hostBridgeError('cancelled', 'qr scan cancelled')",
+  "hostBridgeError('host_error', 'qr scanner unavailable')",
 ]) {
   if (!scannerSource.includes(scannerSnippet)) {
     throw new Error(`mobile shell QR scanner module missing ${scannerSnippet}`);
@@ -2357,7 +2357,7 @@ for (const scannerTestSnippet of [
   'cancelQrCodeScan',
   'failQrCodeScan',
   'qr scanner already active',
-  'camera permission denied',
+  'qr scanner unavailable',
   'qr scan cancelled',
   'PZ-00000001',
 ]) {