CallManager now auto-resets from Ended to Idle after 2 seconds via
transitionToEnded(). Previously reset() was called from a
LaunchedEffect in CallScreen which could be cancelled when the
composable was disposed via popBack(), leaving the state stuck at
Ended and silently dropping subsequent incoming calls.
Also: CallController now observes CallManager state and auto-cleans
up the WebRTC session when a call ends (handles peer hangup case).
https://claude.ai/code/session_017hZm7yu7CzmcQgZGSaqSXS
Claude
f1fd5ec786