curl --request POST \
  --url https://api.withsplendor.com/v1/admin/fields/promote \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'x-splendor-tenant-id: <x-splendor-tenant-id>' \
  --data '
{
  "dataset_id": "<string>",
  "field_path": "<string>",
  "tenant_id": "<string>"
}
'

{
  "field": {
    "dataset_id": "app-logs",
    "fast": true,
    "field_path": "latency_ms",
    "indexed": true,
    "seen_count": 1240000,
    "stored": true,
    "tenant_id": "acme",
    "type": "i64",
    "variants": [
      {
        "dataset_id": "app-logs",
        "fast": true,
        "field_path": "latency_ms",
        "indexed": true,
        "physical_field": "latency_ms_i64",
        "sample_value": "42",
        "seen_count": 1240000,
        "stored": true,
        "tenant_id": "acme",
        "value_type": "i64"
      }
    ]
  },
  "index_id": "acme__app-logs",
  "index_response": {},
  "promotion_id": "prom_1",
  "reindex_required": true,
  "status": "reindex_required",
  "target_generation_id": 5
}