feat(sdm): inject structural dependency mapping tags across codebase

Adds [C: caller] tags to functions/methods and [M: mutation] / [U: usage] tags to class variables based on cross-module call analysis.

tests/test_mma_concurrent_tracks_sim.py

@@ -11,7 +11,8 @@ from src import api_hook_client
 
 def _poll_mma_status(client, timeout, condition, label):
  """
- Poll get_mma_status() until condition(status) is True or timeout.
+ 
+  Poll get_mma_status() until condition(status) is True or timeout.
   [C: tests/test_mma_step_mode_sim.py:test_mma_step_mode_approval_flow]
  """
  last_status = {}
@@ -28,9 +29,10 @@ def _poll_mma_status(client, timeout, condition, label):
 def test_mma_concurrent_tracks_execution(live_gui) -> None:
  """
  
-  Stress test for concurrent MMA track execution.
-  Verifies that starting multiple tracks simultaneously doesn't cause crashes
-  and that workers from both tracks are processed.
+  
+   Stress test for concurrent MMA track execution.
+   Verifies that starting multiple tracks simultaneously doesn't cause crashes
+   and that workers from both tracks are processed.
  """
  client = api_hook_client.ApiHookClient()
  assert client.wait_for_server(timeout=15), "Hook server did not start"