Adds a hand-curated Vietnamese↔English legal ontology covering all
42 chủ đề, all 202 đề mục, plus a 116-entry legal-term glossary
(instrument hierarchy, document structure, courts, agencies,
procedure roles, common civil/criminal/admin concepts). Shipped as
ontology_topics, ontology_demucs, ontology_glossary configs +
ontology.json.
Replaces the cramped 42-cell treemap with three readable visuals:
- ontology_topics_bilingual.png: all 42 topics, sorted, with VI+EN
- ontology_treemap.png: top-20 only, EN sub-labels on largest cells
- ontology_instruments.png: legal-instrument hierarchy diagram
Citation block reworked: phapdien_2026 / TMQuan for the
redistribution + phapdien_moj_2026 for the original source.