@wooden-room-29321 seems to be working fine for now, I'll update here in case of any new findings. Kratos Config:

verification:
      enabled: true
      ui_url: <http://192.168.18.105:8080/verification-done>
      use: code
      lifespan: 24h

200 Response with Validation in Message for invalid code:

{
  "id": "6ef12415-6852-4313-a117-81074ade46a5",
  "type": "api",
  "expires_at": "2023-04-20T01:07:20.687459195Z",
  "issued_at": "2023-04-19T01:07:20.687459195Z",
  "request_url": "<http://127.0.0.1:4433/self-service/registration/api?return_to=>",
  "active": "code",
  "ui": {
    "action": "<http://127.0.0.1:4433/self-service/verification?flow=6ef12415-6852-4313-a117-81074ade46a5>",
    "method": "POST",
    "nodes": [
      {
        "type": "input",
        "group": "code",
        "attributes": {
          "name": "code",
          "type": "text",
          "required": true,
          "disabled": false,
          "node_type": "input"
        },
        "messages": [],
        "meta": {
          "label": {
            "id": 1070006,
            "text": "Verify code",
            "type": "info"
          }
        }
      },
      {
        "type": "input",
        "group": "code",
        "attributes": {
          "name": "method",
          "type": "hidden",
          "value": "code",
          "disabled": false,
          "node_type": "input"
        },
        "messages": [],
        "meta": {}
      },
      {
        "type": "input",
        "group": "code",
        "attributes": {
          "name": "method",
          "type": "submit",
          "value": "code",
          "disabled": false,
          "node_type": "input"
        },
        "messages": [],
        "meta": {
          "label": {
            "id": 1070005,
            "text": "Submit",
            "type": "info"
          }
        }
      }
    ],
    "messages": [
      {
        "id": 4070006,
        "text": "The verification code is invalid or has already been used. Please try again.",
        "type": "error",
        "context": {}
      }
    ]
  },
  "state": "sent_email"
}

Success Response:

{
  "id": "764fde1d-942f-4b28-b166-78fb405e5595",
  "type": "api",
  "expires_at": "2023-04-20T01:13:36.63428291Z",
  "issued_at": "2023-04-19T01:13:36.63428291Z",
  "request_url": "<http://127.0.0.1:4433/self-service/registration/api?return_to=>",
  "active": "code",
  "ui": {
    "action": "<http://192.168.18.105:4455/>",
    "method": "GET",
    "nodes": [
      {
        "type": "input",
        "group": "default",
        "attributes": {
          "name": "csrf_token",
          "type": "hidden",
          "value": "",
          "required": true,
          "disabled": false,
          "node_type": "input"
        },
        "messages": [],
        "meta": {}
      },
      {
        "type": "a",
        "group": "code",
        "attributes": {
          "href": "<http://192.168.18.105:4455/>",
          "title": {
            "id": 1070009,
            "text": "Continue",
            "type": "info"
          },
          "id": "continue",
          "node_type": "a"
        },
        "messages": [],
        "meta": {
          "label": {
            "id": 1070009,
            "text": "Continue",
            "type": "info"
          }
        }
      }
    ],
    "messages": [
      {
        "id": 1080002,
        "text": "You successfully verified your email address.",
        "type": "success"
      }
    ]
  },
  "state": "passed_challenge"
}