feat: 创建Page Object Model基础结构

新增文件：
- e2e/pages/AdminLoginPage.ts - 管理员登录页面对象
- e2e/pages/AdminContentPage.ts - 内容管理页面对象
- e2e/pages/AdminUserPage.ts - 用户管理页面对象
- e2e/pages/FrontendNewsPage.ts - 前端新闻页面对象
- e2e/pages/FrontendProductPage.ts - 前端产品页面对象
- e2e/pages/index.ts - 导出索引文件

功能特性：
- 封装页面交互逻辑，减少测试代码重复
- 提供清晰的API接口，提升测试可读性
- 支持内容创建、删除、验证等核心操作
- 统一等待策略，提升测试稳定性

e2e/pages/AdminContentPage.ts

@@ -0,0 +1,85 @@
+import { Page, expect } from '@playwright/test';
+
+export interface ContentData {
+  type: 'news' | 'product' | 'service' | 'case';
+  title: string;
+  slug: string;
+  excerpt?: string;
+  content?: string;
+  category?: string;
+  tags?: string[];
+  status?: 'draft' | 'published' | 'archived';
+}
+
+export class AdminContentPage {
+  constructor(private page: Page) {}
+
+  async goto() {
+    await this.page.goto('/admin/content');
+    await this.page.waitForLoadState('networkidle');
+  }
+
+  async gotoCreate() {
+    await this.page.goto('/admin/content/new');
+    await this.page.waitForLoadState('domcontentloaded');
+    await this.page.waitForSelector('input[placeholder="请输入标题"]', { timeout: 60000 });
+  }
+
+  async createContent(data: ContentData): Promise<string | null> {
+    await this.gotoCreate();
+    
+    await this.page.fill('input[placeholder="请输入标题"]', data.title);
+    await this.page.fill('input[placeholder="url-slug"]', data.slug);
+    
+    if (data.excerpt) {
+      await this.page.fill('textarea', data.excerpt);
+    }
+    
+    if (data.type) {
+      await this.page.locator('select').first().selectOption(data.type);
+    }
+    
+    if (data.status) {
+      await this.page.locator('select').nth(1).selectOption(data.status);
+    }
+    
+    if (data.category) {
+      await this.page.fill('input[placeholder="分类名称"]', data.category);
+    }
+    
+    await this.page.click('button:has-text("发布")');
+    
+    await this.page.waitForURL(/\/admin\/content\/[a-zA-Z0-9]+/, { timeout: 15000 });
+    
+    const url = this.page.url();
+    const match = url.match(/\/admin\/content\/([a-zA-Z0-9]+)/);
+    return match ? match[1] : null;
+  }
+
+  async deleteContent(contentId: string) {
+    await this.goto();
+    const row = this.page.locator(`tr:has-text("${contentId}")`);
+    
+    if (await row.count() > 0) {
+      await row.locator('button:has-text("删除")').click();
+      await this.page.locator('button:has-text("确认"), button:has-text("确定")').click();
+      await this.page.waitForResponse(resp => 
+        resp.url().includes('/api/admin/content') && 
+        resp.request().method() === 'DELETE',
+        { timeout: 10000 }
+      );
+    }
+  }
+
+  async expectContentInList(title: string) {
+    await this.goto();
+    const row = this.page.locator(`tr:has-text("${title}")`);
+    await expect(row).toBeVisible();
+  }
+
+  async expectContentNotInList(title: string) {
+    await this.goto();
+    const row = this.page.locator(`tr:has-text("${title}")`);
+    await expect(row).not.toBeVisible();
+  }
+}

e2e/pages/AdminLoginPage.ts

@@ -0,0 +1,25 @@
+import { Page, expect } from '@playwright/test';
+
+export class AdminLoginPage {
+  constructor(private page: Page) {}
+
+  async goto() {
+    await this.page.goto('/admin/login');
+    await this.page.waitForLoadState('networkidle');
+  }
+
+  async login(email: string, password: string) {
+    await this.page.fill('#email', email);
+    await this.page.fill('#password', password);
+    await this.page.click('button[type="submit"]');
+    await this.page.waitForURL(/\/admin(?!\/login)/);
+  }
+
+  async expectLoginSuccess() {
+    await expect(this.page).toHaveURL(/\/admin(?!\/login)/);
+  }
+
+  async expectLoginError() {
+    await expect(this.page.locator('[role="alert"]')).toBeVisible();
+  }
+}

e2e/pages/AdminUserPage.ts

@@ -0,0 +1,39 @@
+import { Page, expect } from '@playwright/test';
+
+export interface UserData {
+  email: string;
+  password: string;
+  name?: string;
+  role?: 'admin' | 'editor' | 'viewer';
+}
+
+export class AdminUserPage {
+  constructor(private page: Page) {}
+
+  async goto() {
+    await this.page.goto('/admin/users');
+    await this.page.waitForLoadState('networkidle');
+  }
+
+  async createUser(data: UserData) {
+    await this.page.click('button:has-text("新建用户")');
+    await this.page.fill('input[name="email"]', data.email);
+    await this.page.fill('input[name="password"]', data.password);
+    
+    if (data.name) {
+      await this.page.fill('input[name="name"]', data.name);
+    }
+    
+    if (data.role) {
+      await this.page.selectOption('select[name="role"]', data.role);
+    }
+    
+    await this.page.click('button[type="submit"]');
+  }
+
+  async expectUserInList(email: string) {
+    await this.goto();
+    const row = this.page.locator(`tr:has-text("${email}")`);
+    await expect(row).toBeVisible();
+  }
+}

e2e/pages/FrontendNewsPage.ts

@@ -0,0 +1,29 @@
+import { Page, expect } from '@playwright/test';
+
+export class FrontendNewsPage {
+  constructor(private page: Page) {}
+
+  async goto() {
+    await this.page.goto('/news');
+    await this.page.waitForLoadState('networkidle');
+  }
+
+  async expectNewsVisible(title: string) {
+    const newsCard = this.page.locator(`text="${title}"`);
+    await expect(newsCard).toBeVisible();
+  }
+
+  async expectNewsNotVisible(title: string) {
+    const newsCard = this.page.locator(`text="${title}"`);
+    await expect(newsCard).not.toBeVisible();
+  }
+
+  async clickNews(title: string) {
+    await this.page.locator(`text="${title}"`).click();
+    await this.page.waitForLoadState('networkidle');
+  }
+
+  async expectNewsDetailVisible(content: string) {
+    await expect(this.page.locator(`text=${content}`)).toBeVisible();
+  }
+}

e2e/pages/FrontendProductPage.ts

@@ -0,0 +1,20 @@
+import { Page, expect } from '@playwright/test';
+
+export class FrontendProductPage {
+  constructor(private page: Page) {}
+
+  async goto() {
+    await this.page.goto('/products');
+    await this.page.waitForLoadState('networkidle');
+  }
+
+  async expectProductVisible(title: string) {
+    const productCard = this.page.locator(`text="${title}"`);
+    await expect(productCard).toBeVisible();
+  }
+
+  async clickProduct(title: string) {
+    await this.page.locator(`text="${title}"`).click();
+    await this.page.waitForLoadState('networkidle');
+  }
+}

e2e/pages/index.ts

@@ -0,0 +1,5 @@
+export { AdminLoginPage } from './AdminLoginPage';
+export { AdminContentPage, type ContentData } from './AdminContentPage';
+export { AdminUserPage, type UserData } from './AdminUserPage';
+export { FrontendNewsPage } from './FrontendNewsPage';
+export { FrontendProductPage } from './FrontendProductPage';