Replaces the Task 5.3 stub with a real YachtTransferDialog backed by
OwnerPicker, a date input, reason select, and notes textarea. Submits to
POST /api/v1/yachts/{id}/transfer, invalidates yacht + ownership-history
queries on success, and surfaces API errors (same-owner 400, cross-tenant
404, no-permission 403) as form-level messages. Transfer button is now
gated by PermissionGate resource="yachts" action="transfer".
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
