refactor: 清理构建流程并引入Bun工具

- 清理旧的输出目录并引入Bun命令行工具以支持构建流程
- 移除构建脚本中多余的删除输出目录命令

package.json

@@ -4,7 +4,7 @@
   "type": "module",
   "scripts": {
     "build": "vite build && bun run build:compile",
-    "build:compile": "rm -rf out && bun build.ts",
+    "build:compile": "bun build.ts",
     "db:generate": "drizzle-kit generate",
     "db:migrate": "drizzle-kit migrate",
     "db:push": "drizzle-kit push",