The first column listed every participant, so an ordinary email read
"Sender, You". It now shows the sender — `participants[0]`, which is the newest
message's from address because the threader adds each message's sender ahead of
its recipients.
The +N badge beside the avatar stays: the name is narrowed, the "how many people
are in this" signal is not.
Nine lines in one component. An earlier attempt at this added a denormalized
`threads.senders` column and a backfill migration so that a thread with several
writers could list them all; that was more machinery than the request warranted
and is reverted.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018SqJYt7jD7oUEkoY68sBZo
lukasandClaude Opus 5
c5742f19da