The Subdomain field's help text still said it inherits CFG_HOST_NAME and that
the label-generation refactor was pending — both untrue now that per-port
subdomain routing has shipped. Reword to: empty -> app-name default, @ ->
domain apex, multi-level supported.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
b17ac3707e
