feat: 初始化公网编辑器后端项目

- 配置 Next.js 14 + TypeScript + TailwindCSS
- 集成 Supabase (Auth + Storage + Database)
- 实现认证 API (login/logout/me)
- 实现文件存储 API (upload/list/get/delete)
- 实现数据库操作 API (tables/query)
- 添加 Supabase 初始化 SQL 脚本
- 添加环境变量配置示例
- 添加项目文档

package.json

@@ -0,0 +1,30 @@
+{
+  "name": "public-editor",
+  "version": "0.1.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev",
+    "build": "next build",
+    "start": "next start",
+    "lint": "next lint"
+  },
+  "dependencies": {
+    "@monaco-editor/react": "^4.7.0",
+    "next": "14.2.35",
+    "react": "^18",
+    "react-dom": "^18",
+    "react-markdown": "^10.1.0",
+    "remark-gfm": "^4.0.1",
+    "uuid": "^13.0.0"
+  },
+  "devDependencies": {
+    "@types/node": "^20",
+    "@types/react": "^18",
+    "@types/react-dom": "^18",
+    "eslint": "^8",
+    "eslint-config-next": "14.2.35",
+    "postcss": "^8",
+    "tailwindcss": "^3.4.1",
+    "typescript": "^5"
+  }
+}