- One server per app run (loopback, no password); Invite attaches an
all-interfaces listener to the same server and Stop sharing detaches
it (guests told with 4016); members, media and Up next never reset.
No solo mode: you're home on your own server unless in a friend's.
- Navigation: none / yours / friend; a join passes a version gate on
/health first (clear "they/you need to update", update offer).
- Invite as a value (host, port, name, password flag, version, fp
reserved); addresses filtered (loopback, link-local, 198.18/15,
bridges) and ranked; Sharing chip, Copy invite, Stop sharing.
- Alone looks like a plain player (alone replaces solo).
- AppGraph builds and disposes systems; widgets use AppScope;
SessionState deleted; a test caps the remaining singletons.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
