List categories

curl --request GET \
  --url https://app.finta.com/api/v1/categories \
  --header 'Authorization: Bearer <token>'

{
  "object": "list",
  "data": [
    {
      "id": "cat_a1b2c3d4e5f6g7",
      "object": "category",
      "name": "People Expenses",
      "tier": 1,
      "parent_id": null,
      "system": false
    },
    {
      "id": "cat_h8i9j0k1l2m3n4",
      "object": "category",
      "name": "Payroll",
      "tier": 1,
      "parent_id": "cat_a1b2c3d4e5f6g7",
      "system": false
    },
    {
      "id": "cat_o5p6q7r8s9t0u1",
      "object": "category",
      "name": "Software",
      "tier": 1,
      "parent_id": null,
      "system": false
    },
    {
      "id": "cat_v2w3x4y5z6a7b8",
      "object": "category",
      "name": "Hosting",
      "tier": 1,
      "parent_id": "cat_o5p6q7r8s9t0u1",
      "system": false
    }
  ]
}