Self-hosted ntfy that doesn't expose a token-mint endpoint can still
authenticate over HTTP Basic. Add Username + Password fields to
NtfyConfig; the channel sends 'Authorization: Basic …' when token is
empty and username is set. Token wins when both are configured.
Form-side: two new optional fields next to the access token, with
the same write-only placeholder treatment as smtp_password (blank
on edit means 'keep stored value'). Username is round-tripped on
edit; password is masked.
steve
38683b4e64