chore: 添加项目配置文件

- 添加 Python 项目配置 (pyproject.toml)
- 添加环境变量示例 (.env.example)
- 添加 Docker 忽略文件 (.dockerignore)
- 添加 TypeScript 配置 (tsconfig.json, tsconfig.node.json)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

frontend/tsconfig.node.json

@@ -0,0 +1,11 @@
+{
+  "compilerOptions": {
+    "composite": true,
+    "skipLibCheck": true,
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "allowSyntheticDefaultImports": true,
+    "strict": true
+  },
+  "include": ["vite.config.ts"]
+}