conductor(plan): Mark tasks 3.1-3.2 as complete

conductor/tracks/pipeline_pause_resume_20260306/plan.md

@@ -40,7 +40,7 @@ Focus: Add control methods
 ## Phase 3: UI Controls
 Focus: Add pause/resume buttons
 
-- [ ] Task 3.1: Add pause/resume button
+- [x] Task 3.1: Add pause/resume button (3cb7d4f)
     - WHERE: `src/gui_2.py` MMA dashboard
     - WHAT: Toggle button for pause state
     - HOW:
@@ -54,7 +54,7 @@ Focus: Add pause/resume buttons
         engine.pause()
       ```
 
-- [ ] Task 3.2: Add visual indicator
+- [x] Task 3.2: Add visual indicator (3cb7d4f)
     - WHERE: `src/gui_2.py`
     - WHAT: Banner or color when paused
     - HOW: