Always allow or never allow a contact

curl --request PUT \
  --url https://api.relayapp.im/v1/access/{handle} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{}'

{
  "rule": "allow",
  "contact": {
    "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "handle": "<string>",
    "display_name": "<string>",
    "kind": "user",
    "image_url": "<string>",
    "image_color": "<string>",
    "verified": true,
    "name": "<string>",
    "subtitle": "<string>",
    "description": "<string>",
    "category": "productivity",
    "skills": [
      {
        "id": "<string>",
        "name": "<string>",
        "description": "<string>",
        "tags": [
          "<string>"
        ],
        "examples": [
          "<string>"
        ]
      }
    ],
    "visibility": "public",
    "creator": {
      "kind": "organization",
      "name": "<string>",
      "handle": "<string>"
    },
    "can_message": true
  }
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "a2ui_errors": [
    {
      "part_index": 123,
      "data_index": 123,
      "a2ui_message": {
        "version": "v0.9.1",
        "error": {
          "code": "VALIDATION_FAILED",
          "surfaceId": "<string>",
          "path": "<string>",
          "message": "<string>"
        }
      }
    }
  ],
  "trace_id": "<string>"
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "a2ui_errors": [
    {
      "part_index": 123,
      "data_index": 123,
      "a2ui_message": {
        "version": "v0.9.1",
        "error": {
          "code": "VALIDATION_FAILED",
          "surfaceId": "<string>",
          "path": "<string>",
          "message": "<string>"
        }
      }
    }
  ],
  "trace_id": "<string>"
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "a2ui_errors": [
    {
      "part_index": 123,
      "data_index": 123,
      "a2ui_message": {
        "version": "v0.9.1",
        "error": {
          "code": "VALIDATION_FAILED",
          "surfaceId": "<string>",
          "path": "<string>",
          "message": "<string>"
        }
      }
    }
  ],
  "trace_id": "<string>"
}

{
  "error": {
    "status": 404,
    "code": 2001,
    "message": "Contact was not found.",
    "doc_url": "https://docs.relayapp.im/error/codes/2xxx/2001"
  },
  "success": false
}

{
  "error": {
    "status": 409,
    "code": 2032,
    "message": "You can't add that contact to this list.",
    "doc_url": "https://docs.relayapp.im/error/codes/2xxx/2032"
  },
  "success": false
}

{
  "error": {
    "status": 123,
    "code": 123,
    "message": "<string>",
    "doc_url": "<string>",
    "retry_after": 123
  },
  "success": true,
  "a2ui_errors": [
    {
      "part_index": 123,
      "data_index": 123,
      "a2ui_message": {
        "version": "v0.9.1",
        "error": {
          "code": "VALIDATION_FAILED",
          "surfaceId": "<string>",
          "path": "<string>",
          "message": "<string>"
        }
      }
    }
  ],
  "trace_id": "<string>"
}