Rebuilds search records for every published Card and every Comment on a
published Card. Intended for manual invocation after a search-index loss
event — not a recurring job.
Uses ActiveJob::Continuable so the work survives worker restarts and
resumes from the last-processed id. The job is idempotent.
Removes script/maintenance/reindex_stale_search_records.rb, which was
written against a different hypothesis (a date-cutoff backfill) and is
superseded by this unconditional repair job.
Mike Dalessio