- TrustCubit: reads how many vouch for the peer + whether YOU do; toggleVouch
certifies/revokes over TrustTransport; never vouches for self; offline-safe.
Kept simple — the full known-member rule (threshold+distance) and its
bootstrap set are still-open policy (network-trust §2); a live count + your
vouch is the honest first step.
- Chat screen now opens ONE session carrying both messaging AND trust (the
shared-connection shape), and shows a slim vouch banner: 'Vouched for by N' +
an 'I know this person' / 'You vouch for them' toggle.
- i18n en/es/pt (human words: 'I know this person', not 'certify').
Tests: 4 trust cubit + messaging + chat, 10 green; analyzer clean.
- MessagesCubit: 1:1 conversation over MessageTransport. Filters the shared
inbox to the peer; tags our own sends with our pubkey (NIP-17 wraps don't come
back to the sender) so the UI can align bubbles; degrades gracefully offline.
- ChatScreen (mockup 10): message bubbles (mine right / peer left) + a composer;
opens a session lazily, shows 'set up sharing' when there's no relay.
- Entry point: a 'Message' button on each offer card (hidden on your own
listings) → /chat/:pubkey.
- Routing + i18n en/es/pt.
Tests: 5 cubit (send/receive/order/filter/offline) + chat offline + market, green.
