Creates an incident form field selection

curl --request POST \
  --url https://api.rootly.com/v1/incidents/{incident_id}/form_field_selections \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/vnd.api+json' \
  --data '{
  "data": {
    "type": "incident_form_field_selections",
    "attributes": {
      "incident_id": "<string>",
      "form_field_id": "<string>",
      "value": "<string>",
      "selected_catalog_entity_ids": [
        "<string>"
      ],
      "selected_group_ids": [
        "<string>"
      ],
      "selected_option_ids": [
        "<string>"
      ],
      "selected_service_ids": [
        "<string>"
      ],
      "selected_functionality_ids": [
        "<string>"
      ],
      "selected_user_ids": [
        123
      ]
    }
  }
}'

{
  "data": {
    "id": "232b1338-9b32-4739-bf71-c4eec38843e1",
    "type": "incident_form_field_selections",
    "attributes": {
      "incident_id": "755b9417-b384-4ed7-864e-e38a577470f4",
      "custom_field_id": 177,
      "form_field_id": "7d46541b-56ad-4b44-81a4-c2552e099b41",
      "form_field": {
        "id": "7d46541b-56ad-4b44-81a4-c2552e099b41",
        "team_id": 190,
        "slug": "incidunt-illo-quis-repellat",
        "kind": "custom",
        "input_kind": "text",
        "value_kind": "inherit",
        "value_kind_catalog_id": null,
        "name": "Incidunt illo quis repellat.",
        "description": "Laudantium nulla vel accusamus.",
        "shown": [
          "web_new_incident_form",
          "web_update_incident_form"
        ],
        "required": [],
        "default_values": [],
        "show_on_incident_details": true,
        "enabled": true,
        "updated_at": "2025-08-26T21:13:58.949-07:00",
        "created_at": "2025-08-26T21:13:58.949-07:00",
        "options": [
          {
            "id": "4aa584e1-0756-4c35-ae45-85c59818ff0b",
            "form_field_id": "7d46541b-56ad-4b44-81a4-c2552e099b41",
            "value": "Dicta et eius fugit.",
            "color": "#FBE4A0",
            "default": false,
            "position": 1,
            "updated_at": "2025-08-26T21:13:58.975-07:00",
            "created_at": "2025-08-26T21:13:58.975-07:00"
          },
          {
            "id": "ae72796e-7d02-434d-b612-d291334b02e8",
            "form_field_id": "7d46541b-56ad-4b44-81a4-c2552e099b41",
            "value": "Est eaque delectus ipsa.",
            "color": "#FBE4A0",
            "default": false,
            "position": 2,
            "updated_at": "2025-08-26T21:13:58.978-07:00",
            "created_at": "2025-08-26T21:13:58.978-07:00"
          }
        ],
        "positions": [
          {
            "id": "f6b8bac9-934f-416c-8316-a8d8502e3b9f",
            "form_field_id": "7d46541b-56ad-4b44-81a4-c2552e099b41",
            "form": "web_update_incident_form",
            "position": 2
          },
          {
            "id": "e4046c09-5772-41b0-aba3-105f070baeb4",
            "form_field_id": "7d46541b-56ad-4b44-81a4-c2552e099b41",
            "form": "web_new_incident_form",
            "position": 2
          }
        ]
      },
      "value": "Test custom field",
      "selected_group_ids": [],
      "selected_groups": {
        "id": null,
        "value": "Test custom field"
      },
      "selected_option_ids": [],
      "selected_options": {
        "id": null,
        "value": "Test custom field"
      },
      "selected_service_ids": [],
      "selected_services": {
        "id": null,
        "value": "Test custom field"
      },
      "selected_functionality_ids": [],
      "selected_functionalities": {
        "id": null,
        "value": "Test custom field"
      },
      "selected_catalog_entity_ids": [],
      "selected_catalog_entities": {
        "id": null,
        "value": "Test custom field"
      },
      "selected_user_ids": [],
      "selected_users": {
        "id": null,
        "value": "Test custom field"
      }
    }
  }
}