Highlight the task switch icon when other tasks need attention

mac/Sources/Byre/Panes.swift

@@ -343,7 +343,7 @@ struct TaskBar: View {
                 } label: {
                     Image(systemName: "list.bullet")
                         .font(Fonts.font(13, weight: 600))
-                        .foregroundStyle(accent)
+                        .foregroundStyle(store.otherTasksNeedAttention ? Palette.warn : accent)
                         .padding(.vertical, 6)
                         .contentShape(Rectangle())
                 }

mac/Sources/Byre/Phone.swift

@@ -186,7 +186,7 @@ struct PhoneView: View {
             } label: {
                 Image(systemName: "list.bullet")
                     .font(Fonts.font(17, weight: 600))
-                    .foregroundStyle(Palette.accent)
+                    .foregroundStyle(store.otherTasksNeedAttention ? Palette.warn : Palette.accent)
                     .padding(.horizontal, 10)
                     .padding(.vertical, 8)
                     .contentShape(Rectangle())

mac/Sources/Byre/Store.swift

@@ -77,6 +77,11 @@ final class Store {
     var savedCommands: [SavedCommand] = []
     var sessions: [String: [AgentSession]] = [:]
     var inbox: [InboxItem] = []
+    var otherTasksNeedAttention: Bool {
+        inbox.contains { $0.taskId != selectedTaskId } || tasks.values.contains { list in
+            list.contains { $0.id != selectedTaskId && taskState($0).needsYou }
+        }
+    }
     private(set) var terminals: [String: [TaskTerminal]] = [:]
     private(set) var selectedTaskId: String?
     var pinned: Int?