// 测试OAuth 2.0认证流程
// 1. 创建OAuth客户端
POST http://localhost:5001/api/v1/oauth/clients
Content-Type: application/json

{
  "clientName": "TestClient",
  "redirectUris": ["http://localhost:3000/callback"],
  "scopes": ["read", "write"]
}

###

// 2. 获取授权码（在浏览器中访问以下URL）
// http://localhost:5001/api/v1/oauth/authorize?response_type=code&client_id=test_client&redirect_uri=http://localhost:3000/callback&scope=read&state=xyz

###

// 3. 使用授权码获取访问令牌
POST http://localhost:5001/api/v1/oauth/token
Content-Type: application/x-www-form-urlencoded

grant_type=authorization_code&code=YOUR_AUTHORIZATION_CODE&redirect_uri=http://localhost:3000/callback&client_id=test_client&client_secret=YOUR_CLIENT_SECRET

###

// 4. 使用访问令牌访问受保护的API
GET http://localhost:5001/api/v1/mails
Authorization: Bearer YOUR_ACCESS_TOKEN

###

// 5. 刷新访问令牌
POST http://localhost:5001/api/v1/oauth/token
Content-Type: application/x-www-form-urlencoded

grant_type=refresh_token&refresh_token=YOUR_REFRESH_TOKEN&client_id=test_client&client_secret=YOUR_CLIENT_SECRET