test(e2e): 前后台联调 Playwright 与 admin 冒烟

新增 e2e-live 真 API 一致性全路径，并为 admin-h5 增加 mock 浏览器冒烟。

Co-authored-by: Cursor <cursoragent@cursor.com>

package.json

@@ -4,6 +4,7 @@
   "workspaces": [
     "apps/user-h5",
     "apps/admin-h5",
+    "e2e-live",
     "packages/*"
   ],
   "scripts": {
@@ -17,6 +18,8 @@
     "deps:ps": "docker compose -f docker-compose.dev.yml ps",
     "test:h5": "npm run test -w @yuxingu/user-h5",
     "test:e2e": "npm run test:e2e -w @yuxingu/user-h5",
+    "test:e2e:admin": "npm run test:e2e -w @yuxingu/admin-h5",
+    "test:e2e:live": "npm run test -w @yuxingu/e2e-live",
     "test:api": "cd apps/api && go test ./...",
     "test:api:integration": "cd apps/api && go test ./internal/integration/ -count=1"
   }