Follow-up to the avatar feature: peers' published photos/illustrations
now actually render where people appear.
- CachedAvatar: a PeerAvatar that resolves the person's picture from the
ProfileCache (FutureBuilder), falling back to the coloured-initial disc.
For list/row sites — one avatar each.
- Chat bubbles: the peer's and my own avatar are resolved once into state
(_peerPicture/_selfPicture — from the cache / ProfileStore, freshened
from the peer's published profile) and threaded to each bubble, so many
bubbles of two people don't each hit the cache.
- Chat list + your-people rows: swapped the static person-icon disc for
CachedAvatar, so photos/illustrations show there too.
- Tests: CachedAvatar render modes (cached illustration / initial / no
cache). analyze clean; chat + your-people suites green.
Market offers show no author avatar today (would be a new element, not a
swap) — left out of scope.
vjrj
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