refactor(types): auto -> None sweep across entire codebase

Applied 236 return type annotations to functions with no return values
across 100+ files (core modules, tests, scripts, simulations).
Added Phase 4 to python_style_refactor track for remaining 597 items
(untyped params, vars, and functions with return values).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

multi_agent_conductor.py

@@ -17,7 +17,7 @@ class ConductorEngine:
     Orchestrates the execution of tickets within a track.
     """
 
- def __init__(self, track: Track, event_queue: Optional[events.AsyncEventQueue] = None, auto_queue: bool = False):
+ def __init__(self, track: Track, event_queue: Optional[events.AsyncEventQueue] = None, auto_queue: bool = False) -> None:
   self.track = track
   self.event_queue = event_queue
   self.tier_usage = {
@@ -29,7 +29,7 @@ class ConductorEngine:
   self.dag = TrackDAG(self.track.tickets)
   self.engine = ExecutionEngine(self.dag, auto_queue=auto_queue)
 
- async def _push_state(self, status: str = "running", active_tier: str = None):
+ async def _push_state(self, status: str = "running", active_tier: str = None) -> None:
   if not self.event_queue:
    return
   payload = {
@@ -44,7 +44,7 @@ class ConductorEngine:
   }
   await self.event_queue.put("mma_state_update", payload)
 
- def parse_json_tickets(self, json_str: str):
+ def parse_json_tickets(self, json_str: str) -> None:
   """
         Parses a JSON string of ticket definitions (Godot ECS Flat List format)
         and populates the Track's ticket list.
@@ -73,7 +73,7 @@ class ConductorEngine:
   except KeyError as e:
    print(f"Missing required field in ticket definition: {e}")
 
- async def run(self, md_content: str = ""):
+ async def run(self, md_content: str = "") -> None:
   """
         Main execution loop using the DAG engine.
         Args: