My identity schema

{
  "$schema": "<http://json-schema.org/draft-07/schema#>",
  "title": "User",
  "type": "object",
  "properties": {
    "traits": {
      "type": "object",
      "properties": {
        "phone_number": {
          "type": "string",
          "title": "Phone Number",
          "format": "tel",
          "minLength": 10,
          "ory.sh/kratos": {
            "credentials": {
              "passkey": {
                "display_name": true
              }
            }
          }
        },
        "first_name": {
          "type": "string",
          "title": "First Name"
        },
        "last_name": {
          "type": "string",
          "title": "Last Name"
        },
        "verified": {
          "type": "boolean",
          "title": "Verified",
          "default": false
        }
      },
      "required": ["phone_number"],
      "additionalProperties": false
    }
  }

}

my kratos config.yaml

version: v1.3.0

dsn: memory

serve:
  public:
    base_url: <http://localhost:4433/>
    cors:
      enabled: true
      allowed_origins:
        - <http://localhost:8081>
        - <http://localhost:19006>
      allowed_methods:
        - POST
        - GET
        - PUT
        - PATCH
        - DELETE
      allowed_headers:
        - Authorization
        - Content-Type
        - X-Session-Token
        - Cookie
      exposed_headers:
        - Content-Type
        - Set-Cookie
      allow_credentials: true
  admin:
    base_url: <http://localhost:4434/>

selfservice:
  default_browser_return_url: <http://localhost:8081/>
  allowed_return_urls:
    - <http://localhost:8081>
    - <http://localhost:19006>

  methods:
    passkey:
      enabled: true
      config:
        rp:
          id: localhost
          display_name: app
          origins:
            - <http://localhost:8081>
            - <http://localhost:19006>
    password:
      enabled: false

  flows:
    settings:
      ui_url: <http://localhost:8081/settings>
      privileged_session_max_age: 15m
    verification:
      enabled: true
      ui_url: <http://localhost:8081/verification>
      use: code
      after:
        default_browser_return_url: <http://localhost:8081/>
    recovery:
      enabled: true
      ui_url: <http://localhost:8081/recovery>
      use: code
    login:
      ui_url: <http://localhost:8081/login>
      lifespan: 10m
      after:
        passkey:
          hooks:
            - hook: revoke_active_sessions
    registration:
      ui_url: <http://localhost:8081/registration>
      lifespan: 10m
      before:
        passkey:
          hooks:
            - hook: session

log:
  level: debug
  format: text
  leak_sensitive_values: true

secrets:
  cookie:
    - NONPROD-INSECURE-SECRET

hashers:
  argon2:
    parallelism: 1
    memory: 128MB
    iterations: 2
    salt_length: 16
    key_length: 16

identity:
  default_schema_id: user
  schemas:
    - id: user
      url: file:///etc/config/kratos/identity.schema.json

# courier:
#   smtp:
#     connection_uri: <smtps://test:test@mailslurper:1025/?skip_ssl_verify=true>

I am still familiarizing with the ory kratos terminology, but I am able to create a registrationFlow, and when I attempt to update the registration flow with these options:

{
  "flow": "f97a4537-c640-43c6-bdcc-b34310325d39",
  "updateRegistrationFlowBody": {
    "method": "passkey",
    "csrf_token": "redacted",
    "traits": {
      "phone_number": "+36306555555",
      "first_name": "",
      "last_name": ""
    }
  }
}

I get this error in container logs

kratos-1  | time=2025-03-02T16:40:58Z level=info msg=Encountered self-service flow error. audience=audit error=map[message:I[#/] S[] could not find a strategy to sign up with stack_trace:                 e] webauthn:map[enabled:false]] regi

anything obvious I'm missing? I find the kratos.yaml documentation is not very comprehensive and I think my issue is probably there.