task-17(壳层/路由): 桌面端壳层响应式验收 + 浏览器验收基建

引入 @playwright/test(mdEdge 通道)，playwright.config 起 mock admin API + vite dev；
e2e 覆盖宽/窄屏自动折叠、折叠持久化、无横向溢出等 8 用例；workspace 边界扫描
排除测试专用 e2e/scripts/playwright.config。

admin-frontend-vue/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "crawler-plugin-admin-frontend-vue",
+  "private": true,
+  "version": "0.1.0",
+  "type": "module",
+  "scripts": {
+    "dev": "vite --host --port 5174",
+    "build": "vue-tsc --noEmit && vite build",
+    "preview": "vite preview",
+    "test": "node --test tests/*.test.ts",
+    "test:browser": "playwright test"
+  },
+  "dependencies": {
+    "axios": "^1.13.6",
+    "element-plus": "^2.11.4",
+    "pinia": "^3.0.3",
+    "vue": "^3.5.18",
+    "vue-router": "^4.5.1"
+  },
+  "devDependencies": {
+    "@playwright/test": "^1.63.0",
+    "@types/node": "^26.4.1",
+    "@vitejs/plugin-vue": "^6.0.1",
+    "typescript": "^5.9.2",
+    "vite": "^7.3.1",
+    "vue-tsc": "^3.0.6"
+  }
+}