chore: 统一代码格式并配置开发工具

- 添加 ESLint 和 Prettier 配置以统一代码风格
- 配置项目级 TypeScript 设置
- 更新前后端依赖版本
- 修复代码格式问题（引号、分号、尾随逗号等）
- 优化文件结构和导入路径

web/package.json

@@ -7,6 +7,8 @@
     "dev": "vite",
     "build": "vite build",
     "lint": "eslint .",
+    "lint:fix": "eslint . --fix",
+    "typecheck": "tsc --noEmit",
     "preview": "vite preview"
   },
   "dependencies": {
@@ -28,10 +30,11 @@
     "zustand": "^5.0.11"
   },
   "devDependencies": {
-    "backend": "workspace:*",
     "@types/react": "^19",
     "@types/react-dom": "^19",
-    "vite": "^5.0.0",
-    "@vitejs/plugin-react": "^4.0.0"
+    "@vitejs/plugin-react": "^4.0.0",
+    "backend": "workspace:*",
+    "eslint": "^10.0.3",
+    "vite": "^5.0.0"
   }
-}
+}