Disconnect an inference-provider credential

Delete the miner's stored credential for the given provider. If the deleted provider was the miner's default, the default falls back to whichever other provider is still connected, or clears to NULL when none remain. Returns the new default so the client can update without a follow-up GET.

curl -X DELETE "https://loading/v1/miner/inference-auth/string"

{
  "property1": "string",
  "property2": "string"
}

{
  "detail": [
    {
      "loc": [
        "string"
      ],
      "msg": "string",
      "type": "string",
      "input": null,
      "ctx": {}
    }
  ]
}