- Updated `entity_review.py` to map email semantic fields from JSON.
- Expanded `email_semantics.py` with additional museum mappings.
- Introduced a new rule in `.opencode/rules/no-duplicate-ontology-mappings.md` to prevent duplicate ontology mappings.
- Added a backup JSON file for entity resolution candidates.
- Created `enrich_email_semantics.py` to enrich candidates with email semantic signals.
- Developed `merge_entity_reviews.py` to merge reviewed decisions from a backup into new candidates.
