Transcription fixes (#28)

- Timeout to 20s
- Fixes the last segment missing thing - the root cause is probably
timing vs `throttle` which is not strictly necessary and may break in
SwiftUI environment anyway
- (Optional) Changes `List` → `LazyVStack`
  - nicer animations, the performance penalty should be negligible
  - fixes macOS "overlapping bubbles" issue

![Screenshot 2025-08-22 at 09 00 22
Small](https://github.com/user-attachments/assets/2ba755f1-5da6-4069-b5d0-2402e7d3eaae)

Author: pblazej

VoiceAgent.xcodeproj/project.pbxproj

@@ -10,7 +10,6 @@
 		ACAEBA5B2DE6EE970072E93E /* ReplayKit.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = ACAEBA5A2DE6EE970072E93E /* ReplayKit.framework */; };
 		ACAEBA622DE6EE970072E93E /* BroadcastExtension.appex in Embed Foundation Extensions */ = {isa = PBXBuildFile; fileRef = ACAEBA582DE6EE970072E93E /* BroadcastExtension.appex */; platformFilters = (ios, xros, ); settings = {ATTRIBUTES = (RemoveHeadersOnCopy, ); }; };
 		ACAEBA692DE6EF4B0072E93E /* LiveKit in Frameworks */ = {isa = PBXBuildFile; productRef = ACAEBA682DE6EF4B0072E93E /* LiveKit */; };
-		ACBC177A2D8C34B5007EE71F /* AsyncAlgorithms in Frameworks */ = {isa = PBXBuildFile; productRef = ACBC17792D8C34B5007EE71F /* AsyncAlgorithms */; };
 		ACFBA1DB2D8D5CBE0021202B /* Collections in Frameworks */ = {isa = PBXBuildFile; productRef = ACFBA1DA2D8D5CBE0021202B /* Collections */; };
 		B5E1B90F2D14E9EC00A38CB6 /* LiveKitComponents in Frameworks */ = {isa = PBXBuildFile; productRef = B5E1B90E2D14E9EC00A38CB6 /* LiveKitComponents */; };
 		B5E1B9122D14E9F500A38CB6 /* LiveKit in Frameworks */ = {isa = PBXBuildFile; productRef = B5E1B9112D14E9F500A38CB6 /* LiveKit */; };
@@ -122,7 +121,6 @@
 				ACFBA1DB2D8D5CBE0021202B /* Collections in Frameworks */,
 				B5E1B90F2D14E9EC00A38CB6 /* LiveKitComponents in Frameworks */,
 				B5E1B9122D14E9F500A38CB6 /* LiveKit in Frameworks */,
-				ACBC177A2D8C34B5007EE71F /* AsyncAlgorithms in Frameworks */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -228,7 +226,6 @@
 			packageProductDependencies = (
 				B5E1B90E2D14E9EC00A38CB6 /* LiveKitComponents */,
 				B5E1B9112D14E9F500A38CB6 /* LiveKit */,
-				ACBC17792D8C34B5007EE71F /* AsyncAlgorithms */,
 				ACFBA1DA2D8D5CBE0021202B /* Collections */,
 			);
 			productName = VoiceAgent;
@@ -269,7 +266,6 @@
 			packageReferences = (
 				B5E1B90D2D14E9EC00A38CB6 /* XCRemoteSwiftPackageReference "components-swift" */,
 				B5E1B9102D14E9F500A38CB6 /* XCRemoteSwiftPackageReference "client-sdk-swift" */,
-				ACBC17782D8C34B5007EE71F /* XCRemoteSwiftPackageReference "swift-async-algorithms" */,
 				ACFBA1D92D8D5CBE0021202B /* XCRemoteSwiftPackageReference "swift-collections" */,
 			);
 			preferredProjectObjectVersion = 77;
@@ -723,14 +719,6 @@
 /* End XCConfigurationList section */
 
 /* Begin XCRemoteSwiftPackageReference section */
-		ACBC17782D8C34B5007EE71F /* XCRemoteSwiftPackageReference "swift-async-algorithms" */ = {
-			isa = XCRemoteSwiftPackageReference;
-			repositoryURL = "https://github.com/apple/swift-async-algorithms.git";
-			requirement = {
-				kind = upToNextMajorVersion;
-				minimumVersion = 1.0.3;
-			};
-		};
 		ACFBA1D92D8D5CBE0021202B /* XCRemoteSwiftPackageReference "swift-collections" */ = {
 			isa = XCRemoteSwiftPackageReference;
 			repositoryURL = "https://github.com/apple/swift-collections";
@@ -762,11 +750,6 @@
 			isa = XCSwiftPackageProductDependency;
 			productName = LiveKit;
 		};
-		ACBC17792D8C34B5007EE71F /* AsyncAlgorithms */ = {
-			isa = XCSwiftPackageProductDependency;
-			package = ACBC17782D8C34B5007EE71F /* XCRemoteSwiftPackageReference "swift-async-algorithms" */;
-			productName = AsyncAlgorithms;
-		};
 		ACFBA1DA2D8D5CBE0021202B /* Collections */ = {
 			isa = XCSwiftPackageProductDependency;
 			package = ACFBA1D92D8D5CBE0021202B /* XCRemoteSwiftPackageReference "swift-collections" */;

VoiceAgent/App/AppViewModel.swift

@@ -14,7 +14,7 @@ final class AppViewModel {
     // MARK: - Constants
 
     private enum Constants {
-        static let agentConnectionTimeout: TimeInterval = 10
+        static let agentConnectionTimeout: TimeInterval = 20
     }
 
     // MARK: - Errors

VoiceAgent/Chat/ChatViewModel.swift

@@ -1,4 +1,3 @@
-import AsyncAlgorithms
 import Collections
 import Foundation
 import LiveKit
@@ -11,12 +10,6 @@ import Observation
 @MainActor
 @Observable
 final class ChatViewModel {
-    // MARK: - Constants
-
-    private enum Constants {
-        static let throttle: Duration = .milliseconds(100)
-    }
-
     // MARK: - State
 
     private(set) var messages: OrderedDictionary<ReceivedMessage.ID, ReceivedMessage> = [:]
@@ -45,10 +38,7 @@ final class ChatViewModel {
         for messageReceiver in messageReceivers {
             Task { [weak self] in
                 do {
-                    for await message in try await messageReceiver
-                        .messages()
-                        ._throttle(for: Constants.throttle)
-                    {
+                    for await message in try await messageReceiver.messages() {
                         guard let self else { return }
                         messages.updateValue(message, forKey: message.id)
                     }

VoiceAgent/Chat/View/ChatView.swift

@@ -6,20 +6,19 @@ struct ChatView: View {
 
     var body: some View {
         ScrollViewReader { scrollView in
-            List {
-                ForEach(viewModel.messages.values.reversed(), content: message)
+            ScrollView {
+                LazyVStack {
+                    ForEach(viewModel.messages.values.reversed(), content: message)
+                }
             }
             .onChange(of: viewModel.messages.count) {
-                withAnimation(.smooth) {
-                    scrollView.scrollTo(viewModel.messages.keys.last)
-                }
+                scrollView.scrollTo(viewModel.messages.keys.last)
             }
+            .upsideDown()
+            .padding(.horizontal)
+            .scrollIndicators(.never)
+            .animation(.default, value: viewModel.messages)
         }
-        .upsideDown()
-        .listStyle(.plain)
-        .scrollIndicators(.never)
-        .scrollContentBackground(.hidden)
-        .animation(.default, value: viewModel.messages)
     }
 
     @ViewBuilder
@@ -33,8 +32,6 @@ struct ChatView: View {
             }
         }
         .upsideDown()
-        .listRowBackground(EmptyView())
-        .listRowSeparator(.hidden)
         .id(message.id) // for the ScrollViewReader to work
     }