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>

simulation/sim_execution.py

@@ -9,7 +9,7 @@ class ExecutionSimulation(BaseSimulation):
   if os.path.exists("hello.ps1"):
    os.remove("hello.ps1")
 
- def run(self):
+ def run(self) -> None:
   print("\n--- Running Execution & Modals Simulation ---")
   # 1. Trigger script generation (Async so we don't block on the wait loop)
   msg = "Create a hello.ps1 script that prints 'Simulation Test' and execute it."