feat: 更新依赖并添加待办事项功能

- 更新 drizzle-orm、drizzle-zod 和 drizzle-kit 到最新 beta 版本，并将 nitro 更新为最新 nightly 版本，同时升级 iconv-lite 和 tedious 的依赖版本以修复兼容性问题。
- 添加数据库开发脚本并更新 drizzle-orm、drizzle-zod 和 drizzle-kit 为 beta 版本，同时将 nitro 更新为最新 nightly 版本。
- 启用数据库连接的预处理功能并明确配置连接参数。
- 添加待办事项页面路由及服务器函数以获取待办事项数据
- 添加/todo路由配置并更新路由树结构以包含新路由的完整定义和类型声明。

package.json

@@ -5,6 +5,10 @@
   "scripts": {
     "build": "vite build",
     "compile": "rm -rf out && bun build --compile .output/server/index.mjs --outfile out/server",
+    "db:generate": "drizzle-kit generate",
+    "db:migrate": "drizzle-kit migrate",
+    "db:push": "drizzle-kit push",
+    "db:studio": "drizzle-kit studio",
     "dev": "vite dev",
     "fix": "biome check --write",
     "serve": "vite preview",
@@ -18,8 +22,8 @@
     "@tanstack/react-router-devtools": "^1.150.0",
     "@tanstack/react-router-ssr-query": "^1.150.0",
     "@tanstack/react-start": "^1.150.0",
-    "drizzle-orm": "^1.0.0-beta.9-e89174b",
-    "drizzle-zod": "^1.0.0-beta.9-e89174b",
+    "drizzle-orm": "beta",
+    "drizzle-zod": "beta",
     "postgres": "^3.4.8",
     "react": "^19.2.3",
     "react-dom": "^19.2.3",
@@ -34,8 +38,8 @@
     "@types/bun": "^1.3.6",
     "@vitejs/plugin-react": "^5.1.2",
     "babel-plugin-react-compiler": "^1.0.0",
-    "drizzle-kit": "^1.0.0-beta.9-e89174b",
-    "nitro": "npm:nitro-nightly@^3.0.1-20260115-135431-98fc91c5",
+    "drizzle-kit": "beta",
+    "nitro": "npm:nitro-nightly@latest",
     "typescript": "^5.9.3",
     "vite": "^8.0.0-beta.8",
     "vite-tsconfig-paths": "^6.0.4"