chore(conductor): Add new track 'Undo/Redo History Support'

conductor/tracks.md

@@ -73,6 +73,10 @@ This file tracks all major tracks for the project. Each track has its own detail
    *Link: [./tracks/discussion_takes_branching_20260311/](./tracks/discussion_takes_branching_20260311/)*
    *Goal: Non-linear discussion timelines via tabbed "takes", message branching, and synthesis generation workflows.*
 
+10. [ ] **Track: Undo/Redo History Support**
+    *Link: [./tracks/undo_redo_history_20260311/](./tracks/undo_redo_history_20260311/)*
+    *Goal: Robust, non-provider based undo/redo for text inputs, UI controls, discussion mutations, and context management. Includes hotkey support and a history list view.*
+
 ---
 
 ### Additional Language Support