test(web+mp): E2E 测试全量实施 — Web 5 flow + MP 4 flow + 基础设施

Web 端 (Playwright):
- fixtures: test-data 工厂 + API Client (乐观锁 version) + 增强 auth fixture
- pages: LoginPage, PatientListPage, PatientDetailPage, HealthDataPage, AppointmentPage
- flows: 患者全流程, 体征数据链路, 预约排班链路, 随访管理链路, 告警处理链路
- smoke tests 迁移到 smoke/ 目录，import 路径更新
- playwright.config.ts 更新: globalSetup 环境检查, 60s timeout, video retain

小程序端 (Vitest + miniprogram-automator):
- helpers: AutomatorClient, MpApiClient, MpAuthHelper, MpNavigator
- flows: 患者健康数据查看, 体征数据录入, 积分签到兑换, 积分商城浏览
- vitest.config.ts + check-readiness.ts
- vitest 4.1.5 依赖安装

Playwright 发现 15 个测试 (5 flow + 10 smoke)，全部就绪

apps/web/e2e/pages/login.page.ts

@@ -0,0 +1,48 @@
+// apps/web/e2e/pages/login.page.ts
+import type { Page } from '@playwright/test';
+
+export class LoginPage {
+  readonly page: Page;
+
+  constructor(page: Page) {
+    this.page = page;
+  }
+
+  async goto() {
+    await this.page.goto('/#/login');
+    await this.page.waitForSelector('.ant-card, .ant-form');
+  }
+
+  async fillUsername(username: string) {
+    await this.page.fill('input[id="username"], input[placeholder*="用户名"]', username);
+  }
+
+  async fillPassword(password: string) {
+    await this.page.fill('input[type="password"]', password);
+  }
+
+  async clickSubmit() {
+    await this.page.click('button[type="submit"]');
+  }
+
+  async login(username: string, password: string) {
+    await this.goto();
+    await this.fillUsername(username);
+    await this.fillPassword(password);
+    await this.clickSubmit();
+  }
+
+  async getErrorMessage(): Promise<string> {
+    const el = this.page.locator('.ant-form-item-explain-error, .ant-message-error, .ant-alert-error');
+    return el.first().textContent() ?? '';
+  }
+
+  async isLoggedIn(): Promise<boolean> {
+    try {
+      await this.page.waitForURL('**/#/', { timeout: 5000 });
+      return true;
+    } catch {
+      return false;
+    }
+  }
+}