curl --request GET \
  --url https://api.wacht.dev/api/agent/contexts \
  --cookie session_id=

{
  "data": [
    {
      "id": "123456789012345678",
      "deployment_id": "111111111111111111",
      "context_group": "support-agents",
      "title": "Customer Support Conversation",
      "system_instructions": "You are a helpful customer support assistant.",
      "status": "active",
      "message_count": 15,
      "created_at": "2024-01-15T10:30:00Z",
      "updated_at": "2024-01-15T11:30:00Z"
    }
  ],
  "has_more": false,
  "limit": 10,
  "offset": 0
}