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>

tests/test_mma_models.py

@@ -1,7 +1,7 @@
 import pytest
 from models import Ticket, Track, WorkerContext
 
-def test_ticket_instantiation():
+def test_ticket_instantiation() -> None:
  """
     Verifies that a Ticket can be instantiated with its required fields:
     id, description, status, assigned_to.
@@ -22,7 +22,7 @@ def test_ticket_instantiation():
  assert ticket.assigned_to == assigned_to
  assert ticket.depends_on == []
 
-def test_ticket_with_dependencies():
+def test_ticket_with_dependencies() -> None:
  """
     Verifies that a Ticket can store dependencies.
     """
@@ -35,7 +35,7 @@ def test_ticket_with_dependencies():
  )
  assert ticket.depends_on == ["T1"]
 
-def test_track_instantiation():
+def test_track_instantiation() -> None:
  """
     Verifies that a Track can be instantiated with its required fields:
     id, description, and a list of Tickets.
@@ -56,14 +56,14 @@ def test_track_instantiation():
  assert track.tickets[0].id == "T1"
  assert track.tickets[1].id == "T2"
 
-def test_track_can_handle_empty_tickets():
+def test_track_can_handle_empty_tickets() -> None:
  """
     Verifies that a Track can be instantiated with an empty list of tickets.
     """
  track = Track(id="TRACK-2", description="Empty Track", tickets=[])
  assert track.tickets == []
 
-def test_worker_context_instantiation():
+def test_worker_context_instantiation() -> None:
  """
     Verifies that a WorkerContext can be instantiated with ticket_id, 
     model_name, and messages.
@@ -83,7 +83,7 @@ def test_worker_context_instantiation():
  assert context.model_name == model_name
  assert context.messages == messages
 
-def test_ticket_mark_blocked():
+def test_ticket_mark_blocked() -> None:
  """
     Verifies that ticket.mark_blocked(reason) sets the status to 'blocked'.
     Note: The reason field might need to be added to the Ticket class.
@@ -92,7 +92,7 @@ def test_ticket_mark_blocked():
  ticket.mark_blocked("Waiting for API key")
  assert ticket.status == "blocked"
 
-def test_ticket_mark_complete():
+def test_ticket_mark_complete() -> None:
  """
     Verifies that ticket.mark_complete() sets the status to 'completed'.
     """
@@ -100,7 +100,7 @@ def test_ticket_mark_complete():
  ticket.mark_complete()
  assert ticket.status == "completed"
 
-def test_track_get_executable_tickets():
+def test_track_get_executable_tickets() -> None:
  """
     Verifies that track.get_executable_tickets() returns only 'todo' tickets
     whose dependencies are all 'completed'.
@@ -124,7 +124,7 @@ def test_track_get_executable_tickets():
  assert "T6" in executable_ids
  assert len(executable_ids) == 2
 
-def test_track_get_executable_tickets_complex():
+def test_track_get_executable_tickets_complex() -> None:
  """
     Verifies executable tickets with complex dependency chains.
     Chain: T1 (comp) -> T2 (todo) -> T3 (todo)