c6b12e9d60
'back-in-stock' was added to the Payload-side email-templates type but never wired into this repo's own EmailTemplateType union or the Live Preview page's VALID_TYPES/fallback-heading maps — every other type is registered in three places, this one was only in one, so opening its Live Preview 404'd. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>