Sender-side offline delivery hardening.
- OfferOutbox: a keystore-backed (no plaintext) queue of lot ids to publish
later. Stores ids, not offers, so on flush each offer is rebuilt from the
lot's CURRENT state — an offline edit is respected, a deleted lot drops out.
- flushOutbox(): on reconnect, republishes queued lots and clears them (no-op
offline; drops ids whose lot is gone).
- Market screen: sharing offline parks the lots ('we'll share these when you're
connected'); opening the market online auto-flushes the queue first.
- Wired via DI + TaneApp(outbox); i18n en/es/pt.
Tests: 4 outbox + 3 flush + market UI, 20 green. Analyzer clean for new code.
The other half of the market: share your marked lots as offers.
- VarietyRepository.shareableLots(): non-private lots WITH their id (stable,
updatable offer id) + the variety label. Private lots never leave the device.
- OffersCubit.publishLots(): maps each via OfferMapper and publishes, tagged
with the coarse area + signed by the derived key; counts acceptances; no-op
offline or with no area.
- Market screen: a 'share my seeds' action (online only) — publishes, then
re-discovers to show them; 'mark some seeds first' when nothing's shared.
- i18n en/es/pt.
14 tests green (repo query, cubit publish, market UI); analyzer clean for new code.
The testable core of the offers UI slice, transport-agnostic:
- OfferMapper: pure app-sharing-intent (OfferStatus) -> network Offer/OfferType
mapping; keeps price only for sales, refuses to publish private lots.
- OffersCubit: discover(geohash) streams results; publish() reports the verdict;
depends on the OfferTransport interface (fake in tests) and degrades
gracefully offline (null transport = social layer unavailable, never throws).
8 tests green (fake in-memory transport, no relay). Screen/routing/i18n come
next — they need two product decisions (coarse-area capture, relay list).
