chore(mma): Implement visual simulation for Epic planning and fix UI refresh

tests/visual_sim_mma_v2.py

@@ -28,12 +28,26 @@ def test_mma_epic_simulation(live_gui) -> None:
   pass
  client.set_value('mma_epic_input', 'Build a simple calculator')
  client.click('btn_mma_plan_epic')
- # Poll client.get_mma_status() every 1 second (up to 30 seconds)
- success = False
+
+ # 1. Poll for Proposed Tracks
+ proposed_success = False
+ for i in range(30):
+  status = client.get_mma_status()
+  if status and status.get('proposed_tracks') and len(status['proposed_tracks']) > 0:
+   proposed_success = True
+   break
+  time.sleep(1)
+ assert proposed_success, "Failed to generate proposed tracks."
+
+ # 2. Accept Proposed Tracks
+ client.click('btn_mma_accept_tracks')
+
+ # 3. Poll for Final Tracks
+ tracks_success = False
  for i in range(30):
   status = client.get_mma_status()
   if status and status.get('tracks') and len(status['tracks']) > 0:
-   success = True
+   tracks_success = True
    break
   time.sleep(1)
- assert success, "Failed to generate at least one track."
+ assert tracks_success, "Failed to generate at least one track."