curl --request PATCH \
  --url https://api.leanmcp.com/api/chats/id/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "title": "My Updated Chat Title",
  "summary": "Discussion about TypeScript best practices",
  "modelUsed": "claude-3-sonnet",
  "systemMessageId": "msg_uuid_system_001",
  "metadata": {
    "category": "development",
    "priority": "high"
  }
}
'

{
  "id": "<string>",
  "userId": "<string>",
  "title": "<string>",
  "isPublic": false,
  "status": "active",
  "createdAt": "<string>",
  "updatedAt": "<string>",
  "messageCount": 1,
  "showcased": false,
  "summary": "<string>",
  "modelUsed": "<string>",
  "systemMessageId": "<string>",
  "metadata": {}
}