feat: 平台错误与完成弹窗收口

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

@@ -11,6 +11,7 @@ import { afterEach, describe, expect, test, vi } from 'vitest';
 
 import * as clipboardService from '../../services/clipboard';
 import { PlatformErrorDialog } from './PlatformErrorDialog';
+import { PlatformTaskCompletionDialog } from './PlatformTaskCompletionDialog';
 
 vi.mock('../../services/clipboard', () => ({
   copyTextToClipboard: vi.fn(),
@@ -58,3 +59,49 @@ describe('PlatformErrorDialog', () => {
     expect(screen.queryByRole('dialog', { name: '发生错误' })).toBeNull();
   });
 });
+
+describe('PlatformTaskCompletionDialog', () => {
+  test('shows source, message, and copies the full completion report', async () => {
+    vi.mocked(clipboardService.copyTextToClipboard).mockResolvedValue(true);
+
+    render(
+      <PlatformTaskCompletionDialog
+        completion={{
+          source: '抓大鹅草稿 match3d-notice-session-1',
+          message: '生成任务已完成，可以继续查看草稿。',
+        }}
+        onClose={() => {}}
+      />,
+    );
+
+    const dialog = screen.getByRole('dialog', { name: '生成完成' });
+    expect(
+      within(dialog).getByText('抓大鹅草稿 match3d-notice-session-1'),
+    ).toBeTruthy();
+    expect(
+      within(dialog).getByText('生成任务已完成，可以继续查看草稿。'),
+    ).toBeTruthy();
+
+    fireEvent.click(within(dialog).getByRole('button', { name: '复制内容' }));
+
+    expect(clipboardService.copyTextToClipboard).toHaveBeenCalledWith(
+      [
+        '来源：抓大鹅草稿 match3d-notice-session-1',
+        '状态：生成任务已完成，可以继续查看草稿。',
+      ].join('\n'),
+    );
+    await waitFor(() => {
+      expect(
+        within(dialog).getByRole('button', { name: '已复制' }),
+      ).toBeTruthy();
+    });
+  });
+
+  test('does not render when there is no active completion', () => {
+    render(
+      <PlatformTaskCompletionDialog completion={null} onClose={() => {}} />,
+    );
+
+    expect(screen.queryByRole('dialog', { name: '生成完成' })).toBeNull();
+  });
+});