Create Auto Responder Translation

Clones an auto responder into one or more other locales as sibling records that mirror the original one to one: the auto responder and every one of its variants keep the same active and draft status they have on the original, along with its tags and URL parameters. Each variant points at the template's own version in that locale; a template with no version there yet is translated alongside, and reported under templates. An AI pass is queued per variant to translate its subject, preview line, content, and annotation. Until every variant's first pass, and its template's, has landed, sends to that language fall back to the source, so an active translation never sends untranslated copy. A translation is never the category default: the source stays the record the system looks up, and sends resolve to the subscriber's language from there. A locale that cannot be used is reported in refused and leaves the others alone.