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.

src/theme_2.py

@@ -23,7 +23,8 @@ from src.theme_nerv_fx import CRTFilter, AlertPulsing, StatusFlicker
 
 def _c(r: int, g: int, b: int, a: int = 255) -> tuple[float, float, float, float]:
  """
- Convert 0-255 RGBA to 0.0-1.0 floats.
+ 
+  Convert 0-255 RGBA to 0.0-1.0 floats.
   [C: src/theme_nerv.py:module]
  """
  return (r / 255.0, g / 255.0, b / 255.0, a / 255.0)
@@ -283,7 +284,9 @@ def set_child_transparency(val: float) -> None:
 def apply(palette_name: str) -> None:
  """
  
-     Apply a named palette by setting all ImGui style colors and applying global professional styling.
+  
+      Apply a named palette by setting all ImGui style colors and applying global professional styling.
+  [C: tests/test_theme.py:test_theme_apply_sets_rounding_and_padding]
  """
  global _current_palette
  _current_palette = palette_name
@@ -420,4 +423,4 @@ def render_post_fx(width: float, height: float, ai_status: str, crt_enabled: boo
  _alert_pulsing.update(ai_status)
  _alert_pulsing.render(width, height)
  _crt_filter.enabled = crt_enabled
- _crt_filter.render(width, height)
+ _crt_filter.render(width, height)