chore(conductor): Mark track 'Fix GUI Crashes in Tool Preset Manager and Discussion Hub' as complete after Phase 4

conductor/tracks/gui_crash_fixes_20260531/plan.md

@@ -13,4 +13,9 @@
 ## Phase 3: Global Verification
 - [x] Task: Run `python scripts/check_imgui_scopes.py` to statically verify all ImGui scopes are correct across the codebase.
 - [x] Task: Run automated test suite to ensure no regressions were introduced.
-- [x] Task: Conductor - User Manual Verification 'Global Verification' (Protocol in workflow.md)
+- [x] Task: Conductor - User Manual Verification 'Global Verification' (Protocol in workflow.md)
+
+## Phase 4: Fix Take Tab Switching Bug
+- [x] Task: Investigate the logic that handles switching between Takes in the Discussion Hub (e.g. `render_takes_panel` or similar tab rendering function) to find why it reverts state.
+- [x] Task: Fix the state management bug causing the 1-frame flicker so the selected take persists.
+- [x] Task: Conductor - User Manual Verification 'Fix Take Tab Switching' (Protocol in workflow.md)

conductor/tracks/gui_crash_fixes_20260531/spec.md

@@ -10,6 +10,8 @@ This track addresses several critical crashes in the immediate-mode GUI (`gui_2.
 - **Discussion Hub Fixes:**
   - Resolve the `IndexError: list index out of range` in `render_discussion_entries` that occurs when deleting a discussion entry.
   - Fix the associated ImGui scope mismatches (`Calling PopID() too many times!`) in the `HistoryChild_AB39D74A` window and tabs that trigger after the exception occurs.
+- **Take Management Fixes:**
+  - Fix the bug where clicking a Take tab fails to switch the active take and falls back to the original take, causing a 1-frame flicker.
 
 ## Non-Functional Requirements
 - **ImGui Scope Safety:** Ensure all ImGui push/pop and begin/end pairs are correctly matched, even when exceptions are raised or lists are modified during rendering. The use of `imscope` context managers should be verified.