User reports tapping "answer" on an incoming direct call does nothing
visible, and suspects the same may affect desktop. The signal recv loop
had no tracing at all, so we can't tell whether CallSetup is being
received, whether the recv loop died silently, or whether
CallEngine::start is failing between "identity loaded" and
"connected to relay, handshake complete".
- register_signal recv loop now logs every message type with fields
(CallRinging, DirectCallOffer, DirectCallAnswer, CallSetup, Hangup,
unhandled), plus a warn! on recv errors and a final warn when the
loop exits.
- place_call / answer_call commands log entry + success / error. The
answer_call error path logs the underlying send_signal error so we
can see it in logcat instead of only in the JS error toast.
- CallEngine::start android branch logs relay/room/alias on entry,
logs "endpoint created, dialing relay" between create_endpoint and
connect, "QUIC connection established, performing handshake" between
connect and perform_handshake, and promotes all three potential
failures to explicit error! logs so a silent hang / error becomes
visible in logcat.
No functional changes — pure diagnostics. Stacks on b35a6b7 (the Oboe
stack-pointer-escape fix) so build #43 carries both.
d7b37a5749