merge: fj/feat/android-voip-client — congestion fix, AEC toggle, debug logging

Merged 10 commits from Android branch:
- Send task crash fix on QUIC congestion (continue instead of break)
- AEC toggle + NoiseSuppressor on Android
- Debug reporter for crash diagnostics
- Mic mute crackling fix
- Participant dedup in UI
- Proper QUIC connection close on hangup
- Null alias display fix
- Tracing → Android logcat
- Incident reports for send-task crash and playout ring desync

Conflict resolved in room.rs: kept Android's improved debug logging
(recv gap tracking, lock contention, forward latency, send errors)
inside our media_task async block for parallel signal handling.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

crates/wzp-client/src/featherchat.rs

@@ -126,6 +126,7 @@ mod tests {
             ephemeral_pub: [2u8; 32],
             signature: vec![3u8; 64],
             supported_profiles: vec![QualityProfile::GOOD],
+            alias: None,
         };
 
         let encoded = encode_call_payload(&signal, Some("relay.example.com:4433"), Some("myroom"));
@@ -143,6 +144,7 @@ mod tests {
             ephemeral_pub: [0; 32],
             signature: vec![],
             supported_profiles: vec![],
+            alias: None,
         };
         assert!(matches!(signal_to_call_type(&offer), CallSignalType::Offer));