curl --request GET \
  --url https://app.teable.ai/api/table/%7BtableId%7D/field/%7BfieldId%7D/plan \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN'

{
  "estimateTime": 123,
  "updateCellCount": 123,
  "graph": {
    "nodes": [
      {
        "id": "<string>",
        "label": "<string>",
        "comboId": "<string>"
      }
    ],
    "edges": [
      {
        "source": "<string>",
        "target": "<string>",
        "label": "<string>"
      }
    ],
    "combos": [
      {
        "id": "<string>",
        "label": "<string>"
      }
    ]
  },
  "linkFieldCount": 123
}