fix: route call events via EventProcessor and add video call button

Fix call connection stuck at "Connecting":
- Inner events from unwrapped GiftWraps are dispatched through
  EventProcessor.consumeEvent(), not LocalCache.newEventBundles.
  The previous approach using newEventBundles observer never saw
  the inner call events because they're created internally during
  GiftWrap processing, not from relay arrivals.
- Restored callManager routing in EventProcessor.consumeEvent()
  and wired it via account.newNotesPreProcessor.callManager in
  AccountViewModel.initCallController()

Video call button:
- Added Videocam icon button in DM chat header (RenderRoomTopBar)
  next to the voice call button
- onVideoCallClick initiates a VIDEO type call with camera capturer

https://claude.ai/code/session_017hZm7yu7CzmcQgZGSaqSXS

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/AccountViewModel.kt

@@ -146,12 +146,6 @@ import com.vitorpamplona.quartz.nip59Giftwrap.seals.SealedRumorEvent
 import com.vitorpamplona.quartz.nip59Giftwrap.wraps.GiftWrapEvent
 import com.vitorpamplona.quartz.nip90Dvms.contentDiscoveryResponse.NIP90ContentDiscoveryResponseEvent
 import com.vitorpamplona.quartz.nip94FileMetadata.tags.DimensionTag
-import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallAnswerEvent
-import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallHangupEvent
-import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallIceCandidateEvent
-import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallOfferEvent
-import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallRejectEvent
-import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallRenegotiateEvent
 import com.vitorpamplona.quartz.utils.Hex
 import com.vitorpamplona.quartz.utils.Log
 import com.vitorpamplona.quartz.utils.TimeUtils
@@ -222,6 +216,7 @@ class AccountViewModel(
             )
         callManager.onAnswerReceived = { event -> controller.onCallAnswerReceived(event.sdpAnswer()) }
         callManager.onIceCandidateReceived = { event -> controller.onIceCandidateReceived(event) }
+        account.newNotesPreProcessor.callManager = callManager
         callController = controller
     }
 
@@ -1415,23 +1410,6 @@ class AccountViewModel(
                 }
             }
         }
-
-        viewModelScope.launch(Dispatchers.IO) {
-            LocalCache.live.newEventBundles.collect { newNotes ->
-                newNotes.forEach { note ->
-                    val event = note.event ?: return@forEach
-                    when (event) {
-                        is CallOfferEvent,
-                        is CallAnswerEvent,
-                        is CallIceCandidateEvent,
-                        is CallHangupEvent,
-                        is CallRejectEvent,
-                        is CallRenegotiateEvent,
-                        -> callManager.onSignalingEvent(event)
-                    }
-                }
-            }
-        }
     }
 
     override fun onCleared() {

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/DecryptAndIndexProcessor.kt

@@ -20,6 +20,7 @@
  */
 package com.vitorpamplona.amethyst.ui.screen.loggedIn
 
+import com.vitorpamplona.amethyst.commons.call.CallManager
 import com.vitorpamplona.amethyst.commons.model.privateChats.ChatroomList
 import com.vitorpamplona.amethyst.model.Account
 import com.vitorpamplona.amethyst.model.LocalCache
@@ -36,6 +37,12 @@ import com.vitorpamplona.quartz.nip57Zaps.LnZapRequestEvent
 import com.vitorpamplona.quartz.nip57Zaps.PrivateZapCache
 import com.vitorpamplona.quartz.nip59Giftwrap.seals.SealedRumorEvent
 import com.vitorpamplona.quartz.nip59Giftwrap.wraps.GiftWrapEvent
+import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallAnswerEvent
+import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallHangupEvent
+import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallIceCandidateEvent
+import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallOfferEvent
+import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallRejectEvent
+import com.vitorpamplona.quartz.nipACWebRtcCalls.events.CallRenegotiateEvent
 import com.vitorpamplona.quartz.utils.Log
 import kotlinx.coroutines.CancellationException
 
@@ -52,6 +59,8 @@ class EventProcessor(
     private val zapRequest = LnZapRequestEventHandler(account.privateZapsDecryptionCache)
     private val zapEvent = LnZapEventHandler(account.privateZapsDecryptionCache)
 
+    var callManager: CallManager? = null
+
     suspend fun consume(note: Note) {
         note.event?.let { event ->
             try {
@@ -68,10 +77,22 @@ class EventProcessor(
         publicNote: Note,
     ) {
         when (event) {
+            is CallOfferEvent,
+            is CallAnswerEvent,
+            is CallIceCandidateEvent,
+            is CallHangupEvent,
+            is CallRejectEvent,
+            is CallRenegotiateEvent,
+            -> callManager?.onSignalingEvent(event)
+
             is ChatroomKeyable -> chatHandler.add(event, eventNote, publicNote)
+
             is DraftWrapEvent -> draftHandler.add(event, eventNote, publicNote)
+
             is GiftWrapEvent -> giftWrapHandler.add(event, eventNote, publicNote)
+
             is SealedRumorEvent -> sealHandler.add(event, eventNote, publicNote)
+
             is LnZapRequestEvent -> zapRequest.add(event, eventNote, publicNote)
         }
     }

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/privateDM/ChatroomScreen.kt

@@ -48,12 +48,18 @@ fun ChatroomScreen(
     nav: INav,
 ) {
     val context = LocalContext.current
-    val startCall =
+    val startVoiceCall =
         rememberCallWithPermission(context) {
             val peerPubKey = roomId.users.firstOrNull() ?: return@rememberCallWithPermission
             accountViewModel.callController?.initiateCall(peerPubKey, CallType.VOICE)
             nav.nav(Route.ActiveCall(callId = "", peerPubKey = peerPubKey))
         }
+    val startVideoCall =
+        rememberCallWithPermission(context) {
+            val peerPubKey = roomId.users.firstOrNull() ?: return@rememberCallWithPermission
+            accountViewModel.callController?.initiateCall(peerPubKey, CallType.VIDEO)
+            nav.nav(Route.ActiveCall(callId = "", peerPubKey = peerPubKey))
+        }
 
     DisappearingScaffold(
         isInvertedLayout = true,
@@ -62,7 +68,8 @@ fun ChatroomScreen(
                 room = roomId,
                 accountViewModel = accountViewModel,
                 nav = nav,
-                onCallClick = { _ -> startCall() },
+                onCallClick = { _ -> startVoiceCall() },
+                onVideoCallClick = { _ -> startVideoCall() },
             )
         },
         accountViewModel = accountViewModel,

amethyst/src/main/java/com/vitorpamplona/amethyst/ui/screen/loggedIn/chats/privateDM/header/RenderRoomTopBar.kt

@@ -33,6 +33,7 @@ import androidx.compose.foundation.lazy.rememberLazyListState
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.filled.Call
 import androidx.compose.material.icons.filled.EditNote
+import androidx.compose.material.icons.filled.Videocam
 import androidx.compose.material3.FilledTonalButton
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
@@ -74,6 +75,7 @@ fun RenderRoomTopBar(
     accountViewModel: AccountViewModel,
     nav: INav,
     onCallClick: ((String) -> Unit)? = null,
+    onVideoCallClick: ((String) -> Unit)? = null,
 ) {
     if (room.users.size == 1) {
         TopBarExtensibleWithBackButton(
@@ -90,6 +92,20 @@ fun RenderRoomTopBar(
 
                         UsernameDisplay(baseUser, Modifier.weight(1f), fontWeight = FontWeight.Normal, accountViewModel = accountViewModel)
 
+                        if (onVideoCallClick != null) {
+                            IconButton(
+                                onClick = { onVideoCallClick(baseUser.pubkeyHex) },
+                                modifier = Modifier.size(40.dp),
+                            ) {
+                                Icon(
+                                    imageVector = Icons.Default.Videocam,
+                                    contentDescription = "Video call",
+                                    tint = MaterialTheme.colorScheme.primary,
+                                    modifier = Modifier.size(20.dp),
+                                )
+                            }
+                        }
+
                         if (onCallClick != null) {
                             IconButton(
                                 onClick = { onCallClick(baseUser.pubkeyHex) },