Local room names did a read-modify-write of io.lotus.room_names against
the SDK's local cache, which is stale until the /sync echo, so a second
rename issued before the first echoed overwrote it. Route through
createAccountDataListStore like user notes. Unit-tested with a client
whose setAccountData does not update the local store.
Fixes#17
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPmy3tPq869XDW4njjVaKA