Record draw merge temporary paint cleanup

docs/modernization/debt.md

@@ -405,6 +405,10 @@ agent or engineer to remove them without reconstructing context from chat.
   now drops the unused `draw_checkerboard` parameter from the internal branch
   wrapper, shrinking the remaining call-shape mismatch while the blocked
   draw-merge extraction still stays in `STR-016`.
+- 2026-06-15: `DEBT-0036` was narrowed again. `Canvas::draw_merge_temporary_paint_branch()`
+  now drops the unused `draw_checkerboard` parameter from the temporary-paint
+  wrapper, shrinking the remaining draw-merge helper mismatch while the
+  blocked extraction still stays in `STR-016`.
 - 2026-06-14: `DEBT-0036` was narrowed again. `Canvas::draw_merge_branch_orchestration()`
   now routes the temporary erase, temporary paint, texture, and blend dispatch
   bodies through retained helpers inside `execute_canvas_draw_merge_branch_body(...)`;

docs/modernization/roadmap.md

@@ -3231,6 +3231,10 @@ Results:
   `draw_checkerboard` parameter from the internal branch wrapper, shrinking the
   remaining call-shape mismatch while the blocked draw-merge extraction still
   stays in `STR-016`.
+- `Canvas::draw_merge_temporary_paint_branch()` now drops the unused
+  `draw_checkerboard` parameter from the temporary-paint wrapper, shrinking the
+  remaining draw-merge helper mismatch while the blocked extraction still stays
+  in `STR-016`.
 - Canvas main-brush, dual-brush, and stroke-pad draw paths now use the tested
   `pp_paint_renderer` stroke-feedback plan to decide whether framebuffer fetch
   supplies destination color or the legacy OpenGL path must copy the target