feat: 新增 APP 扫码登录（PC 端二维码轮询），版本 4.8.0

package.json

@@ -1,7 +1,7 @@
 {
   "name": "vue3-element-admin",
   "description": "Vue3 + Vite + TypeScript + Element-Plus 的后台管理模板，vue-element-admin 的 Vue3 版本",
-  "version": "4.7.7",
+  "version": "4.8.0",
   "private": true,
   "type": "module",
   "scripts": {
@@ -63,6 +63,7 @@
     "path-browserify": "^1.0.1",
     "path-to-regexp": "^8.4.2",
     "pinia": "^3.0.4",
+    "qrcode": "^1.5.4",
     "qs": "^6.15.2",
     "sortablejs": "^1.15.7",
     "vue": "^3.5.38",
@@ -81,6 +82,7 @@
     "@types/node": "^26.0.0",
     "@types/nprogress": "^0.2.3",
     "@types/path-browserify": "^1.0.3",
+    "@types/qrcode": "^1.5.6",
     "@types/qs": "^6.15.1",
     "@types/sortablejs": "^1.15.9",
     "@vitejs/plugin-vue": "^6.0.7",