- TradeRecommendationsCard on profiles: shows who recommends this trader
(kind 31873 'Attestor Recommendation') and lets a logged-in viewer recommend
them. New useTraderRecommendations hook.
- OfferDialog sends a best-effort NIP-17 DM to the seller when an offer is made;
ListingOffersPanel DMs the buyer when the seller accepts/declines.
- AGENTS.md notes 31873.
Gate: 101 tests, 0 errors/warnings, boot smoke green.
