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_gui_phase3.py

@@ -12,8 +12,9 @@ from src import paths
 def test_track_proposal_editing(app_instance):
  """
  
-  Verifies the structural integrity of track proposal items.
-  Ensures that track proposals can be edited and removed from the active list.
+  
+   Verifies the structural integrity of track proposal items.
+   Ensures that track proposals can be edited and removed from the active list.
  """
  app_instance.proposed_tracks = [
   {"title": "Old Title", "goal": "Old Goal"},
@@ -35,8 +36,9 @@ def test_track_proposal_editing(app_instance):
 def test_conductor_setup_scan(app_instance, tmp_path, monkeypatch):
  """
  
-  Verifies that the conductor setup scan properly iterates through the conductor directory,
-  counts files and lines, and identifies active tracks.
+  
+   Verifies that the conductor setup scan properly iterates through the conductor directory,
+   counts files and lines, and identifies active tracks.
  """
  old_cwd = os.getcwd()
  os.chdir(tmp_path)
@@ -63,8 +65,9 @@ def test_conductor_setup_scan(app_instance, tmp_path, monkeypatch):
 def test_create_track(app_instance, tmp_path):
  """
  
-  Verifies that _cb_create_track properly creates the track folder
-  and populates the necessary boilerplate files (spec.md, plan.md, metadata.json).
+  
+   Verifies that _cb_create_track properly creates the track folder
+   and populates the necessary boilerplate files (spec.md, plan.md, metadata.json).
  """
  old_cwd = os.getcwd()
  os.chdir(tmp_path)
@@ -91,4 +94,4 @@ def test_create_track(app_instance, tmp_path):
    assert data['type'] == "feature"
    assert data['id'] == track_dir.name
  finally:
-  os.chdir(old_cwd)
+  os.chdir(old_cwd)