Per-template dedup keys for a triggered review. v1Key is the legacy cross-app key (one combined
row per trigger); templateKeys is what v2 records — single-template reuses v1Key,
multi-template suffixes _template_{id}. The single source of truth for that suffix.
Per-template dedup keys for a triggered review.
v1Keyis the legacy cross-app key (one combined row per trigger);templateKeysis what v2 records — single-template reusesv1Key, multi-template suffixes_template_{id}. The single source of truth for that suffix.