feat: add message pining to macOS

Packages/Sources/RxCodeChatKit/ChatBridge.swift

@@ -30,6 +30,10 @@ public final class ChatBridge {
     public var appVersion: String = ""
     public var claudeVersion: String?
     public var codexVersion: String?
+    /// Changes when the local composer begins a new send. Message containers
+    /// use this to clear any active-turn scroll state before AppState appends
+    /// the next user row, matching the mobile send flow.
+    public var sendRequestID: UUID?
 
     /// User decision summaries for `ExitPlanMode` tool calls in the current session,
     /// keyed by `toolCallId`. Pushed by AppState from per-session state and persisted
@@ -64,6 +68,10 @@ public final class ChatBridge {
         await sendHandler?()
     }
 
+    public func markUserSendRequested() {
+        sendRequestID = UUID()
+    }
+
     public func cancelStreaming() async {
         await cancelStreamingHandler?()
     }

Packages/Sources/RxCodeChatKit/ChatMessageListView.swift

@@ -69,9 +69,16 @@ public struct ChatMessageListView: View {
 
 extension View {
     func chatMessageListRowStyle() -> some View {
+        #if os(macOS)
+        padding(EdgeInsets(top: 8, leading: 20, bottom: 24, trailing: 20))
+            .listRowInsets(EdgeInsets(top: 8, leading: 20, bottom: 24, trailing: 20))
+            .listRowSeparator(.hidden)
+            .listRowBackground(Color.clear)
+        #else
         listRowInsets(EdgeInsets(top: 8, leading: 20, bottom: 24, trailing: 20))
             .listRowSeparator(.hidden)
             .listRowBackground(Color.clear)
+        #endif
     }
 }
 

Packages/Sources/RxCodeChatKit/InputBarView+Queue.swift

@@ -111,10 +111,12 @@ extension InputBarView {
     }
 
     func sendQueuedNow(_ id: UUID) {
+        chatBridge.markUserSendRequested()
         Task { await chatBridge.sendQueuedNow(id: id) }
     }
 
     func sendAllQueuedAsOne() {
+        chatBridge.markUserSendRequested()
         Task { await chatBridge.sendAllQueuedAsOne() }
     }
 

Packages/Sources/RxCodeChatKit/InputBarView.swift

@@ -642,6 +642,7 @@ struct InputBarView<Accessory: View, TopAccessory: View>: View {
             windowState.inputText = cmd.command + " "
         } else {
             windowState.inputText = ""
+            chatBridge.markUserSendRequested()
             Task { await chatBridge.sendSlashCommand(cmd.command) }
         }
     }
@@ -750,6 +751,7 @@ struct InputBarView<Accessory: View, TopAccessory: View>: View {
             return
         }
 
+        chatBridge.markUserSendRequested()
         Task { await chatBridge.send() }
         resetIMEState()
     }