fix(quic): raise stream-id cap to 1M to support multi-hour Nests; strip diagnostic logs

Two changes once the cliff is confirmed sidestepped:

1. Raise initialMaxStreamsUni from 10 000 → 1 000 000.

   At framesPerGroup=5 with 20 ms Opus frames the relay opens ~10
   uni streams/sec to a listener. The half-window threshold check
   (`count + initialMaxStreamsUni/2 >= advertisedMaxStreamsUni`)
   now trips at count=500 000 ≈ 13.9 hours of continuous audio.
   For any realistic Nest the rolling MAX_STREAMS_UNI extension
   path — which is what tripped the moq-rs cliff — is dormant.

   Memory cost: QuicConnection.streams grows for the connection's
   lifetime (no removal in current model), so 2 hours costs ~72k
   stream entries. Per-stream overhead is small enough that this
   is tolerable for an audio-room workload; bounded growth is a
   known follow-up.

2. Strip the high-frequency diagnostic logs that were added during
   investigation. Production keeps:
     - SUBSCRIBE_DROP (rare error)
     - MAX_STREAMS_UNI / MAX_STREAMS_BIDI emit (should never fire
       in normal operation now; if it does, we want to know)
     - pumpUniStreams / pumpInboundBidis ended (pump death)
     - announce / subscribe bidi.incoming() exception path
     - ReconnectingHandle.opener throw + retry

   Stripped:
     - per-stream "transport delivered uni stream #N"
     - per-group "uni grpHdr id=N seq=M"
     - per-group "openGroup seq=N keyedOnSubId=…"
     - per-25-stream peerInitiatedUniCount milestone
     - per-chunk "subscribe id=N: bidi chunk #M"
     - per-update RoomAnnouncement
     - 5-second QuicWebTransportSession flow-control snapshot ticker
     - "VM.openSubscription ->/<- subscribeSpeaker"
     - "VM.onSpeakerActivity FIRST frame"
     - "broadcaster: send accepted (subscriber attached)"
     - "broadcaster: publisher.send returned false (no inbound subscriber)"
     - "first inbound subscriber attached"
     - "ignoring inbound SUBSCRIBE id=N track=catalog.json"
     - "publish suffix=…"
     - "transport delivered inbound bidi #N"
     - "inbound AnnouncePlease prefix=…"
     - "inbound SUBSCRIBE id=… track=…"
     - "inbound SUBSCRIBE FIN'd: removing id=…"

   The diagnostic logs can be re-added behind a debug flag later if
   we need to chase a different regression.

Confirmed durable for at least 15 s of continuous audio against
nostrnests.com production with the prior 10 000-cap fix; bumping to
1 000 000 expands the headroom to multi-hour broadcasts without any
new code path firing.

https://claude.ai/code/session_01PYYez8a6sjiakyjAxsfCEQ

commons/src/commonMain/kotlin/com/vitorpamplona/amethyst/commons/viewmodels/NestViewModel.kt

@@ -44,7 +44,6 @@ import com.vitorpamplona.nestsclient.moq.SubscribeHandle
 import com.vitorpamplona.nestsclient.transport.WebTransportFactory
 import com.vitorpamplona.quartz.nip01Core.signers.NostrSigner
 import com.vitorpamplona.quartz.nip53LiveActivities.chat.LiveActivitiesChatMessageEvent
-import com.vitorpamplona.quartz.utils.Log
 import kotlinx.collections.immutable.ImmutableSet
 import kotlinx.collections.immutable.persistentSetOf
 import kotlinx.collections.immutable.toPersistentSet
@@ -843,9 +842,7 @@ class NestViewModel(
     ) {
         if (closed || activeSubscriptions[pubkey] !== slot) return
         try {
-            Log.d("NestRx") { "VM.openSubscription -> subscribeSpeaker pubkey=$pubkey" }
             val handle = l.subscribeSpeaker(pubkey)
-            Log.d("NestRx") { "VM.openSubscription <- subscribeSpeaker returned for pubkey=$pubkey" }
             // Re-check after the suspending subscribeSpeaker — the user
             // may have removed this speaker via updateSpeakers / disconnected
             // while the SUBSCRIBE was in flight. If so, abandon the handle
@@ -1007,7 +1004,6 @@ class NestViewModel(
         // First frame for this subscription — clear the buffering
         // overlay. Subsequent frames are no-ops here.
         if (_uiState.value.connectingSpeakers.contains(pubkey)) {
-            Log.d("NestRx") { "VM.onSpeakerActivity FIRST frame for pubkey=$pubkey — clearing spinner" }
             _uiState.update { it.copy(connectingSpeakers = (it.connectingSpeakers - pubkey).toPersistentSet()) }
         }
         if (!_uiState.value.speakingNow.contains(pubkey)) {