Clarify design audit adoption and provenance #180
- MA
## Summary - add a development-only shared-foundation and gradual-adoption plate - record the design-audit field Select as the only adopted shared control - place provenance below descriptions and quiet state metadata styling - remove the stale duplicate-icon disclosure
This is audit documentation only. It does not migrate product controls or change application behavior. Stacked on #179.
## Verification - 68 focused tests pass - 1,523 repository tests pass; 2 PostgreSQL-environment skips - bun run types - bun run ci - bun run build - git diff --check - final cumulative three-PR audit clean
## Component preview

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