修复开发者密钥时间显示

复用个人中心时间解析逻辑格式化秒级小数时间戳
统一展示密钥创建时间和最近使用时间
补充弹窗回归测试与接入文档约束

src/components/platform-entry/platformProfileApiKeysModal.test.ts

@@ -0,0 +1,45 @@
+/* @vitest-environment jsdom */
+
+import { render, screen } from '@testing-library/react';
+import { createElement } from 'react';
+import { beforeEach, describe, expect, test, vi } from 'vitest';
+
+import { PlatformProfileApiKeysModal } from './PlatformProfileApiKeysModal';
+
+const listExternalApiKeysMock = vi.hoisted(() => vi.fn());
+
+vi.mock('../../services/platform-entry/platformProfileClient', () => ({
+  createPlatformProfileExternalApiKey: vi.fn(),
+  listPlatformProfileExternalApiKeys: listExternalApiKeysMock,
+  revokePlatformProfileExternalApiKey: vi.fn(),
+}));
+
+describe('PlatformProfileApiKeysModal', () => {
+  beforeEach(() => {
+    listExternalApiKeysMock.mockReset();
+  });
+
+  test('将 API Key 时间戳格式化为日期', async () => {
+    listExternalApiKeysMock.mockResolvedValueOnce({
+      keys: [
+        {
+          keyId: 'api-key-1',
+          name: '外部 API Key',
+          keyPrefix: 'tnr_sk_example',
+          scopes: ['editor:project'],
+          createdAt: '1785913407.182731Z',
+          lastUsedAt: null,
+          revokedAt: null,
+          updatedAt: '1785913407.182731Z',
+        },
+      ],
+    });
+
+    render(createElement(PlatformProfileApiKeysModal, { onClose: vi.fn() }));
+
+    expect(
+      await screen.findByText('创建 2026-08-05 · 最近使用 尚未使用'),
+    ).toBeTruthy();
+    expect(screen.queryByText(/1785913407\.182731Z/u)).toBeNull();
+  });
+});