fix(chat-ui): improve typing dots and composer

apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatComposer.swift

@@ -130,8 +130,14 @@ struct ClawdisChatComposer: View {
             .background(
                 RoundedRectangle(cornerRadius: 12, style: .continuous)
                     .fill(ClawdisChatTheme.card))
-            .overlay(self.editorOverlay)
-            .frame(maxHeight: 140)
+            .overlay(alignment: .topLeading) {
+                self.editorOverlay
+            }
+            .overlay(alignment: .bottomTrailing) {
+                self.sendButton
+                    .padding(8)
+            }
+            .frame(minHeight: 44, idealHeight: 44, maxHeight: 96)
     }
 
     private var editorOverlay: some View {
@@ -140,16 +146,16 @@ struct ClawdisChatComposer: View {
                 Text("Message Clawd…")
                     .foregroundStyle(.tertiary)
                     .padding(.horizontal, 10)
-                    .padding(.vertical, 8)
+                    .padding(.vertical, 6)
             }
 
             #if os(macOS)
             ChatComposerTextView(text: self.$viewModel.input) {
                 self.viewModel.send()
             }
-            .frame(minHeight: 44, maxHeight: 120)
+            .frame(minHeight: 32, idealHeight: 32, maxHeight: 72)
             .padding(.horizontal, 8)
-            .padding(.vertical, 6)
+            .padding(.vertical, 5)
             .padding(.trailing, 44)
             #else
             TextEditor(text: self.$viewModel.input)
@@ -159,28 +165,23 @@ struct ClawdisChatComposer: View {
                 .padding(.vertical, 8)
                 .focused(self.$isFocused)
             #endif
+        }
+    }
 
-            VStack {
-                Spacer()
-                HStack {
-                    Spacer()
-                    Button {
-                        self.viewModel.send()
-                    } label: {
-                        if self.viewModel.isSending {
-                            ProgressView().controlSize(.small)
-                        } else {
-                            Image(systemName: "arrow.up")
-                                .font(.system(size: 13, weight: .semibold))
-                        }
-                    }
-                    .buttonStyle(.borderedProminent)
-                    .controlSize(.small)
-                    .disabled(!self.viewModel.canSend)
-                    .padding(8)
-                }
+    private var sendButton: some View {
+        Button {
+            self.viewModel.send()
+        } label: {
+            if self.viewModel.isSending {
+                ProgressView().controlSize(.small)
+            } else {
+                Image(systemName: "arrow.up")
+                    .font(.system(size: 13, weight: .semibold))
             }
         }
+        .buttonStyle(.borderedProminent)
+        .controlSize(.small)
+        .disabled(!self.viewModel.canSend)
     }
 
     #if os(macOS)
@@ -252,7 +253,7 @@ private struct ChatComposerTextView: NSViewRepresentable {
         textView.font = .systemFont(ofSize: 14, weight: .regular)
         textView.textContainer?.lineBreakMode = .byWordWrapping
         textView.textContainer?.lineFragmentPadding = 0
-        textView.textContainerInset = NSSize(width: 2, height: 8)
+        textView.textContainerInset = NSSize(width: 2, height: 6)
         textView.focusRingType = .none
 
         textView.minSize = .zero

apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatMessageViews.swift

@@ -160,6 +160,7 @@ struct ChatTypingIndicatorBubble: View {
 
 @MainActor
 private struct TypingDots: View {
+    @Environment(\.accessibilityReduceMotion) private var reduceMotion
     @State private var phase: Double = 0
 
     var body: some View {
@@ -169,19 +170,33 @@ private struct TypingDots: View {
                     .fill(Color.secondary.opacity(0.55))
                     .frame(width: 7, height: 7)
                     .scaleEffect(self.dotScale(idx))
+                    .opacity(self.dotOpacity(idx))
             }
         }
         .onAppear {
-            withAnimation(.easeInOut(duration: 0.9).repeatForever(autoreverses: true)) {
-                self.phase = 1
+            guard !self.reduceMotion else { return }
+            phase = 0
+            withAnimation(.linear(duration: 1.05).repeatForever(autoreverses: false)) {
+                self.phase = .pi * 2
             }
         }
     }
 
     private func dotScale(_ idx: Int) -> CGFloat {
-        let base = 0.85 + (self.phase * 0.35)
-        let offset = Double(idx) * 0.15
-        return CGFloat(base - offset)
+        if self.reduceMotion { return 0.85 }
+        let wave = self.dotWave(idx)
+        return CGFloat(0.72 + (wave * 0.52))
+    }
+
+    private func dotOpacity(_ idx: Int) -> Double {
+        if self.reduceMotion { return 0.55 }
+        let wave = self.dotWave(idx)
+        return 0.35 + (wave * 0.65)
+    }
+
+    private func dotWave(_ idx: Int) -> Double {
+        let offset = (Double(idx) * (2 * Double.pi / 3))
+        return (sin(self.phase + offset) + 1) / 2
     }
 }
 

apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatViewModel.swift

@@ -34,6 +34,10 @@ public final class ClawdisChatViewModel {
         didSet { self.pendingRunCount = self.pendingRuns.count }
     }
 
+    @ObservationIgnored
+    private nonisolated(unsafe) var pendingRunTimeoutTasks: [String: Task<Void, Never>] = [:]
+    private let pendingRunTimeoutMs: UInt64 = 120_000
+
     private var lastHealthPollAt: Date?
 
     public init(sessionKey: String, transport: any ClawdisChatTransport) {
@@ -54,6 +58,9 @@ public final class ClawdisChatViewModel {
 
     deinit {
         self.eventTask?.cancel()
+        for (_, task) in self.pendingRunTimeoutTasks {
+            task.cancel()
+        }
     }
 
     public func load() {
@@ -91,6 +98,7 @@ public final class ClawdisChatViewModel {
         self.isLoading = true
         self.errorText = nil
         self.healthOK = false
+        self.clearPendingRuns(reason: nil)
         defer { self.isLoading = false }
         do {
             do {
@@ -173,6 +181,7 @@ public final class ClawdisChatViewModel {
                 idempotencyKey: runId,
                 attachments: encodedAttachments)
             self.pendingRuns.insert(response.runId)
+            self.armPendingRunTimeout(runId: response.runId)
         } catch {
             self.errorText = error.localizedDescription
             chatUILogger.error("chat.send failed \(error.localizedDescription, privacy: .public)")
@@ -193,6 +202,7 @@ public final class ClawdisChatViewModel {
             self.handleChatEvent(chat)
         case .seqGap:
             self.errorText = "Event stream interrupted; try refreshing."
+            self.clearPendingRuns(reason: nil)
         }
     }
 
@@ -214,18 +224,53 @@ public final class ClawdisChatViewModel {
                 self.messages.append(msg)
             }
             if let runId = chat.runId {
-                self.pendingRuns.remove(runId)
+                self.clearPendingRun(runId)
+            } else if self.pendingRuns.count <= 1 {
+                self.clearPendingRuns(reason: nil)
             }
         case "error":
             self.errorText = chat.errorMessage ?? "Chat failed"
             if let runId = chat.runId {
-                self.pendingRuns.remove(runId)
+                self.clearPendingRun(runId)
+            } else if self.pendingRuns.count <= 1 {
+                self.clearPendingRuns(reason: nil)
             }
         default:
             break
         }
     }
 
+    private func armPendingRunTimeout(runId: String) {
+        self.pendingRunTimeoutTasks[runId]?.cancel()
+        self.pendingRunTimeoutTasks[runId] = Task { [weak self] in
+            let timeoutMs = await MainActor.run { self?.pendingRunTimeoutMs ?? 0 }
+            try? await Task.sleep(nanoseconds: timeoutMs * 1_000_000)
+            await MainActor.run { [weak self] in
+                guard let self else { return }
+                guard self.pendingRuns.contains(runId) else { return }
+                self.clearPendingRun(runId)
+                self.errorText = "Timed out waiting for a reply; try again or refresh."
+            }
+        }
+    }
+
+    private func clearPendingRun(_ runId: String) {
+        self.pendingRuns.remove(runId)
+        self.pendingRunTimeoutTasks[runId]?.cancel()
+        self.pendingRunTimeoutTasks[runId] = nil
+    }
+
+    private func clearPendingRuns(reason: String?) {
+        for runId in self.pendingRuns {
+            self.pendingRunTimeoutTasks[runId]?.cancel()
+        }
+        self.pendingRunTimeoutTasks.removeAll()
+        self.pendingRuns.removeAll()
+        if let reason, !reason.isEmpty {
+            self.errorText = reason
+        }
+    }
+
     private func pollHealthIfNeeded(force: Bool) async {
         if !force, let last = self.lastHealthPollAt, Date().timeIntervalSince(last) < 10 {
             return