Extends Phase 3 from the M43 commit to yacht detail:
- New /api/v1/yachts/[id]/field-history endpoint joins through
interests.yachtId (no schema migration needed) and filters to
'yacht.%' paths so client-scoped overrides on the same interest
don't bleed into the yacht surface.
- FieldHistoryScope.type accepts 'yacht'; provider URL routing
generalised to /api/v1/<type>s/<id>/field-history.
- yacht-tabs OverviewTab wrapped in the provider; Name + the three
ft-dimension rows get historyPath wired (m-dimension rows skipped —
they're a unit-converted view of the same source value, and the
supplemental writer only ever stores ft).
Addresses tab on Client detail intentionally left unwired — would
need AddressesEditor (a shared component) to surface icons per row,
which is more than the 5-min scope.
1454/1454 vitest, tsc clean.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
