锁定移动剪贴板不可用读取

移动剪贴板单测覆盖底层不可用值返回 host_error

移动壳配置检查反查剪贴板不可用读取边界

共享决策日志补充剪贴板失败语义

apps/mobile-shell/src/host-bridge/clipboard.test.ts

@@ -119,6 +119,15 @@ describe('mobile clipboard helpers', () => {
     });
   });
 
+  test('rejects unavailable clipboard text without reporting a successful empty value', async () => {
+    vi.mocked(Clipboard.getStringAsync).mockResolvedValue(undefined as never);
+
+    await expect(readMobileClipboardText()).rejects.toMatchObject({
+      code: 'host_error',
+      message: 'clipboard text unavailable',
+    });
+  });
+
   test('wraps HostBridge clipboard read responses', async () => {
     vi.mocked(Clipboard.getStringAsync).mockResolvedValue('作品号 PZ-1');