curl -X GET https://app.trypost.it/api/labels \
  -H "Authorization: Bearer tp_your_api_key"

{
  "data": [
    {
      "id": "c3d4e5f6-a7b8-9c0d-1e2f-3a4b5c6d7e8f",
      "name": "Product Launch",
      "color": "#4f46e5",
      "created_at": "2025-01-10 08:00:00",
      "updated_at": "2025-01-10 08:00:00"
    },
    {
      "id": "f6a7b8c9-d0e1-2f3a-4b5c-6d7e8f9a0b1c",
      "name": "Urgent",
      "color": "#ef4444",
      "created_at": "2025-01-12 14:00:00",
      "updated_at": "2025-01-12 14:00:00"
    }
  ]
}