chore: 引入 element-plus 依赖 (手动引入)

frontend/package.json

@@ -14,7 +14,9 @@
     "format": "prettier --write src/"
   },
   "dependencies": {
+    "element-plus": "^2.9.5",
     "pinia": "^2.3.1",
+    "unplugin-element-plus": "^0.9.1",
     "vue": "^3.5.13",
     "vue-i18n": "^11.1.1",
     "vue-router": "^4.5.0"
@@ -36,6 +38,8 @@
     "npm-run-all2": "^7.0.2",
     "prettier": "^3.4.2",
     "typescript": "~5.7.3",
+    "unplugin-auto-import": "^19.1.0",
+    "unplugin-vue-components": "^28.4.0",
     "vite": "^6.0.11",
     "vite-plugin-vue-devtools": "^7.7.1",
     "vitest": "^3.0.5",