Replace the Blossom media-server approach with a fully decentralized one:
generate a small (~320px) JPEG thumbnail from the lot's cover photo and
embed it in the offer event as a data: URI, so photos ride the relays with
no server and no IP leak. The full photo stays in the encrypted inventory.
- offer_thumbnail.dart: downscale-until-it-fits data-URI builder + decoder
- market_widgets: render data: URIs from memory, http(s) URLs from network
- offers_cubit: publish a thumbnail (best-effort) in place of an upload
- drop MediaTransport/Blossom from commons_core (http/crypto deps) and the
media-server setting; parked on branch parked/offer-photos-blossom
Relay event-size limits cap the image to a thumbnail; higher-res sharing
would need the parked Blossom path.
Render offer.imageUrl (already carried by NIP-99) as a thumbnail on each
market card and a hero image on the offer detail page. Remote images
degrade gracefully: a spinner while loading, a neutral placeholder when
the media server is unreachable. Publishing the photo comes next.
The vecino/market view had three gaps:
- Publishing inventory duplicated the listing. discover() appended every
offer the relay streamed, but relays legitimately resend an addressable
NIP-99 event (stored copy + live echo on publish). Merge by
(authorPubkeyHex, id) so each offer appears once; two authors reusing a
lot id stay distinct.
- No product detail. Tapping a card jumped straight to chat. Add a
read-only "product page" (MarketOfferDetailScreen) with title, mode,
category, eco badge, coarse location, price, a "Shared by" seller
section (profile fetched by pubkey) and the message button. Reached via
a new /market/offer route; cards are now fully tappable. Shows only what
the network already carries — no photos/description added to the wire.
- No filters. Add a filter bar (type, category, eco) mirroring inventory,
each chip group shown only when a discovered offer can match it. To make
the eco filter real, publish the organic flag on the wire: Offer.isOrganic
-> NIP-99 'organic' tag -> OfferMapper -> ShareableLot.
Tests: commons_core organic round-trip; app-side dedup, two-author
separation, filter logic, mapper passthrough; detail-screen widget tests.
i18n keys added to en/es/pt/ast and slang regenerated.
