chore: 干净 ERP 基座 — 删除 health/ai/wechat 业务代码

删除内容:
- 前端: health/(67文件), ai/(2文件), Copilot, MediaPicker, 相关API/Store/Hook
- 后端: wechat_handler, wechat_service, wechat_user entity, analytics handler, ai_workflow_seed
- 配置: WechatConfig, AppConfig.wechat, AuthState wechat 字段
- 启动: 微信凭据检查块, ensure_ai_workflows() 调用
- 迁移: 新增 m20260613_000170_drop_wechat_users.rs
- 脚本: api_test_health_alert.py, api_test_mp.py, mpsync.sh/ps1
- E2E: health-data page, flows/ 目录

保留: erp-core/auth/workflow/message/config/plugin + 基座前端 + 通用组件

apps/web/e2e/auth.fixture.ts

@@ -0,0 +1,43 @@
+import { test as base } from '@playwright/test';
+
+const API_BASE = 'http://localhost:3000/api/v1';
+
+let loginPromise: Promise<{ token: string; user: unknown }> | null = null;
+
+function login(): Promise<{ token: string; user: unknown }> {
+  if (!loginPromise) {
+    loginPromise = (async () => {
+      for (let attempt = 0; attempt < 3; attempt++) {
+        try {
+          const res = await fetch(`${API_BASE}/auth/login`, {
+            method: 'POST',
+            headers: { 'Content-Type': 'application/json' },
+            body: JSON.stringify({ username: 'admin', password: 'Admin@2026' }),
+          });
+          const json = await res.json();
+          if (json.success) {
+            return { token: json.data.access_token, user: json.data.user };
+          }
+        } catch {}
+        // Wait before retry on collision
+        await new Promise((r) => setTimeout(r, 500 * (attempt + 1)));
+      }
+      throw new Error('Login failed after 3 attempts');
+    })();
+  }
+  return loginPromise;
+}
+
+export const test = base.extend({
+  page: async ({ page }, use) => {
+    const { token, user } = await login();
+    await page.addInitScript((args) => {
+      localStorage.setItem('access_token', args.token);
+      localStorage.setItem('refresh_token', args.token);
+      localStorage.setItem('user', JSON.stringify(args.user));
+    }, { token, user });
+    await use(page);
+  },
+});
+
+export { expect } from '@playwright/test';