接入填码原生剪贴板读取

邀请码填写和兑换码弹窗在宿主声明 clipboard.readText 时显示粘贴入口

粘贴动作只读取宿主纯文本并填入现有受控输入框，不自动提交或伪造兑换成功

补充填码粘贴回归测试和 profile 剪贴板 helper

更新 Expo/Tauri 宿主壳方案、HostBridge 协议和共享决策记录

src/components/platform-entry/PlatformProfileReferralModal.test.tsx

@@ -2,11 +2,25 @@
 
 import { render, screen, within } from '@testing-library/react';
 import userEvent from '@testing-library/user-event';
-import { describe, expect, test, vi } from 'vitest';
+import { afterEach, describe, expect, test, vi } from 'vitest';
 
 import type { ProfileReferralInviteCenterResponse } from '../../../packages/shared/src/contracts/runtime';
+import {
+  canPasteFromNativeHostClipboard,
+  readNativeHostClipboardText,
+} from './platformProfileHostClipboard';
 import { PlatformProfileReferralModal } from './PlatformProfileReferralModal';
 
+vi.mock('./platformProfileHostClipboard', () => ({
+  canPasteFromNativeHostClipboard: vi.fn(() => false),
+  readNativeHostClipboardText: vi.fn(),
+}));
+
+const canPasteFromNativeHostClipboardMock = vi.mocked(
+  canPasteFromNativeHostClipboard,
+);
+const readNativeHostClipboardTextMock = vi.mocked(readNativeHostClipboardText);
+
 function buildCenter(
   overrides: Partial<ProfileReferralInviteCenterResponse> = {},
 ): ProfileReferralInviteCenterResponse {
@@ -35,6 +49,11 @@ function buildCenter(
 }
 
 describe('PlatformProfileReferralModal', () => {
+  afterEach(() => {
+    vi.clearAllMocks();
+    canPasteFromNativeHostClipboardMock.mockReturnValue(false);
+  });
+
   test('renders invite panel with shared profile content', () => {
     render(
       <PlatformProfileReferralModal
@@ -96,6 +115,35 @@ describe('PlatformProfileReferralModal', () => {
     expect(onSubmitRedeemCode).toHaveBeenCalledTimes(1);
   });
 
+  test('redeem panel can paste invite code from native host clipboard', async () => {
+    const user = userEvent.setup();
+    const onRedeemCodeChange = vi.fn();
+    canPasteFromNativeHostClipboardMock.mockReturnValue(true);
+    readNativeHostClipboardTextMock.mockResolvedValue('spring-2026');
+
+    render(
+      <PlatformProfileReferralModal
+        panel="redeem"
+        center={buildCenter()}
+        isLoading={false}
+        isSubmittingRedeem={false}
+        redeemCode=""
+        copyInviteState="idle"
+        error={null}
+        success={null}
+        onClose={vi.fn()}
+        onCopyInvite={vi.fn()}
+        onRedeemCodeChange={onRedeemCodeChange}
+        onSubmitRedeemCode={vi.fn()}
+      />,
+    );
+
+    await user.click(screen.getByRole('button', { name: '粘贴' }));
+
+    expect(readNativeHostClipboardTextMock).toHaveBeenCalledTimes(1);
+    expect(onRedeemCodeChange).toHaveBeenCalledWith('spring-2026');
+  });
+
   test('renders community QR panels', () => {
     render(
       <PlatformProfileReferralModal