Use established capability tags

C-24 flagged 'user-interface' as outside the recommended family vocabulary.
Replaced with 'experience' and 'documents', both already in estate use.
Deliberately did not add 'decision-support': 'decision' is access-engine's word
under statute §8, and approval-engine withdrew its own seed wording for the
same reason. This repository renders decisions; it must not tag itself as
supporting them.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01V3W1dQG7GFFM9d94jFx7iR

Assistant: claude-code
Assistant-Model: opus
Assistant-Process: 1565372@bnt-lap001
Assistant-Session: 16bb2f25-b34c-49ef-8e94-5fec3567a568

.repo-classification.yaml

@@ -10,7 +10,8 @@ repo_classification:
     - governance
     - evidence
     - identity
-    - user-interface
+    - experience
+    - documents
     - audit
   business_stake:
     - technology