新增前后端AI聊天模块，包括流式对话、配置管理和UI组件优化。

frontend/package.json

@@ -0,0 +1,33 @@
+{
+  "name": "frontend",
+  "version": "0.0.0",
+  "private": true,
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "run-p type-check \"build-only {@}\" --",
+    "preview": "vite preview",
+    "build-only": "vite build",
+    "type-check": "vue-tsc --build"
+  },
+  "dependencies": {
+    "axios": "^1.13.6",
+    "marked": "^17.0.4",
+    "vue": "^3.5.29",
+    "vue-router": "^5.0.3"
+  },
+  "devDependencies": {
+    "@tsconfig/node24": "^24.0.4",
+    "@types/node": "^24.11.0",
+    "@vitejs/plugin-vue": "^6.0.4",
+    "@vue/tsconfig": "^0.8.1",
+    "npm-run-all2": "^8.0.4",
+    "typescript": "~5.9.3",
+    "vite": "^7.3.1",
+    "vite-plugin-vue-devtools": "^8.0.6",
+    "vue-tsc": "^3.2.5"
+  },
+  "engines": {
+    "node": "^20.19.0 || >=22.12.0"
+  }
+}