Rail: desktop parity (element-web rootSpaces) — spaces nested inside another
joined space no longer get a rail entry; their rooms stay reachable through
the parent space. Nested set persisted for clean cold starts.
Updater: new libraries/blapupdate module checks the git.utn.lol release feed
(6h throttle), offers a banner at the top of the chat list, downloads the
ABI-matched APK and hands it to the system installer. Per-version dismissal.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>