Share retained stroke face framebuffer helper

docs/modernization/debt.md

@@ -18,6 +18,11 @@ agent or engineer to remove them without reconstructing context from chat.
 
 ## Recent Reductions
 
+- 2026-06-13: DEBT-0036 was narrowed again. `Canvas::stroke_draw` main and
+  dual live-pass per-face framebuffer begin/end execution plus pad-face array
+  assembly now route through `legacy_canvas_stroke_execution_services.h`;
+  shader activation timing, texture/sampler binding, framebuffer ownership, pad
+  execution, and final OpenGL draw remain retained in `Canvas`.
 - 2026-06-13: DEBT-0036 was narrowed again. `Canvas::stroke_draw` main and
   dual live-pass dirty semantics now route through
   `execute_legacy_canvas_stroke_live_pass_with_dirty_tracking(...)` in