chore(mma): Checkpoint progress on visual simulation and UI refresh before sub-agent delegation

conductor_tech_lead.py

@@ -9,9 +9,9 @@ def generate_tickets(track_brief: str, module_skeletons: str) -> list[dict]:
     Breaks down a Track Brief and module skeletons into discrete Tier 3 Tickets.
     """
  # 1. Set Tier 2 Model (Tech Lead - Flash)
- ai_client.set_provider('gemini', 'gemini-2.5-flash-lite')
- ai_client.reset_session()
- # 2. Construct Prompt
+ if ai_client._model != 'mock':
+        ai_client.set_provider('gemini', 'gemini-2.5-flash-lite')
+        ai_client.reset_session() # 2. Construct Prompt
  system_prompt = mma_prompts.PROMPTS.get("tier2_sprint_planning")
  user_message = (
   f"### TRACK BRIEF:\n{track_brief}\n\n"