REST API endpoints for account settings and API keys

GET /api/v1/settings/api-keys
Authorization: Bearer <token>

[
  {
    "id": 1,
    "name": "CI/CD Pipeline",
    "prefix": "ia_live_abc...",
    "created_at": "2024-01-10T10:00:00Z",
    "last_used_at": "2024-01-15T09:12:00Z"
  }
]

POST /api/v1/settings/api-keys
Authorization: Bearer <token>
Content-Type: application/json

{
  "name": "CI/CD Pipeline"
}

{
  "id": 2,
  "name": "CI/CD Pipeline",
  "key": "ia_live_xxxxxxxxxxxxxxxxxxxxxxxxxxxx"
}

DELETE /api/v1/settings/api-keys/{id}
Authorization: Bearer <token>

GET /api/v1/settings/team
Authorization: Bearer <token>

[
  {
    "id": 1,
    "email": "admin@example.com",
    "role": "admin",
    "joined_at": "2024-01-01T00:00:00Z",
    "last_active_at": "2024-01-15T10:00:00Z"
  }
]

POST /api/v1/settings/team/invite
Authorization: Bearer <token>
Content-Type: application/json

{
  "email": "newuser@example.com",
  "role": "user"
}

PUT /api/v1/settings/team/{user_id}
Authorization: Bearer <token>
Content-Type: application/json

{
  "role": "admin"
}

DELETE /api/v1/settings/team/{user_id}
Authorization: Bearer <token>