feat(edges): extend the closed kind vocabulary with schema-enrichment relations master
Add the twelve schema-enrichment relation kinds to the closed edge vocabulary, directed-kind set, and weight map without changing the edge table schema. EDGES_SCHEMA_VERSION stays fixed because no column or storage contract changed, and bumping it would drop the derived edges table unnecessarily. Activity relations and decisions now emit deterministic edge rows. Relation kind is passed through without local re-validation because insert_edges remains the load-bearing closed-vocabulary check; an unknown kind still fails the file loudly. Quote text is folded into label rather than adding a fifteenth column, so path and anchor remain the stable provenance keys and commitment and closure rows stay byte-identical. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>