Route stroke face sample ordering through helper

docs/modernization/debt.md

@@ -18,6 +18,10 @@ agent or engineer to remove them without reconstructing context from chat.
 
 ## Recent Reductions
 
+- 2026-06-13: DEBT-0036 was narrowed again. `Canvas::stroke_draw` current and
+  dual stroke per-face framebuffer/sample callback ordering now routes through
+  the retained stroke execution helper; framebuffer ownership, shader uniform
+  timing, sampler/texture binding, and live draw execution remain retained.
 - 2026-06-13: DEBT-0036 was narrowed again. `Canvas::stroke_draw` current and
   dual stroke dirty-box mutation now routes through the retained stroke
   execution helper; framebuffer binding, shader uniform timing, sampler/texture

docs/modernization/roadmap.md

@@ -3104,6 +3104,10 @@ Results:
   the retained stroke execution helper, while framebuffer binding, shader
   uniform timing, sampler/texture binding, and live draw execution remain
   retained.
+- `Canvas::stroke_draw` current and dual stroke per-face framebuffer/sample
+  callback ordering now shares the retained stroke execution helper, while
+  framebuffer ownership, shader uniform timing, sampler/texture binding, and
+  live draw execution remain retained.
 - Remaining simple color, hue, color-quad, grid heightmap, and pen/line
   preview shader setup in UI nodes and canvas modes now shares retained helper
   surfaces, while geometry, texture/sampler binding, blend/depth state,

docs/modernization/tasks.md

@@ -509,6 +509,13 @@ Done Checks:
 
 Progress Notes:
 
+- 2026-06-13: `Canvas::stroke_draw` current and dual stroke per-face
+  framebuffer/sample callback ordering now routes through
+  `legacy_canvas_stroke_execution_services.h`; framebuffer ownership, shader
+  uniform timing, sampler/texture binding, and draw execution remain local to
+  Canvas. Next slice should target the remaining per-face retained state around
+  sample execution without reopening the new pad-pass, dirty-mutation, or
+  commit executors.
 - 2026-06-13: `Canvas::stroke_draw` current and dual stroke dirty-box mutation
   now routes through `legacy_canvas_stroke_execution_services.h`; framebuffer
   binding, shader uniform timing, sampler/texture binding, and draw execution