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

tsconfig.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "preserve",
+    "incremental": true,
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ],
+    "paths": {
+      "@/*": ["./src/*"]
+    }
+  },
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
+  "exclude": ["node_modules"]
+}