- calendar: create_calendar_user() now writes bcrypt htpasswd entry to
data/services/calendar/config/users (the path Radicale reads at
/etc/radicale/users); delete_calendar_user() removes the entry
- email: create_email_user() calls `docker exec cell-mail setup email add`
to register the account in docker-mailserver's Dovecot/Postfix store;
delete_email_user() calls the matching `setup email del` — both are
non-fatal if the container isn't running
- service_composer.install(): pull image separately before up so slow
registry pulls don't race with container startup; retry up once on
failure so a transient registry hiccup on first install doesn't
require the user to manually retry
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
roof
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