Promote next stroke dispatch task

docs/modernization/tasks.md

@@ -509,6 +509,10 @@ Done Checks:
 
 Progress Notes:
 
+- 2026-06-13: `STR-004` is now the next ready slice for the last inline stroke
+  dispatch glue; `LATER-003` is effectively at the binding-only tail. Keep
+  this task focused on removing or consolidating helper-builder wiring rather
+  than reopening the landed execution helpers.
 - 2026-06-13: `pp_paint_renderer_stroke_execution_tests` now also covers the
   new retained main-pass texture dispatch helper builder and its pattern/mixer
   wiring. Next slice should target another narrow `stroke_draw()` seam or stop
@@ -806,26 +810,33 @@ Done Checks:
 Use this shape when adding a new task:
 
 ````markdown
-### AREA-000 - Imperative Task Name
+### STR-004 - Collapse Remaining Stroke Dispatch Glue
 
 Status: Ready
-Score: +N scorecard area
-Debt: `DEBT-0000`
-Scope: exact files or directories
+Score: +1 renderer boundary and OpenGL parity
+Debt: `DEBT-0036`
+Scope: `src/canvas.cpp`, `src/legacy_canvas_stroke_execution_services.h`,
+`tests/paint_renderer/stroke_execution_tests.cpp`
 
 Goal:
 
-One paragraph describing the behavior or ownership change.
+Remove the last inline `Canvas::stroke_draw()` dispatch construction that is
+still just wiring. Keep the live adapter owning concrete GL objects, but move
+the remaining helper-builder glue into retained stroke-execution helpers or
+delete it if the callsite can consume a smaller already-tested helper.
 
 Done Checks:
 
-- Binary, grep-able, or testable condition.
-- Debt log update condition.
-- Validation condition.
+- `Canvas::stroke_draw()` has no ad hoc `LegacyCanvasStroke*Dispatch` literal
+  blocks for the remaining live-pass wiring.
+- The helper-builder coverage tests prove the remaining dispatch helpers route
+  the expected callbacks.
+- `docs/modernization/debt.md` records the reduced stroke-dispatch surface.
 
 Validation:
 
 ```powershell
-command
+ctest --preset desktop-fast --build-config Debug -R "pp_paint_renderer_stroke_execution" --output-on-failure
+& 'C:\Program Files\Microsoft Visual Studio\18\Community\MSBuild\Current\Bin\MSBuild.exe' out\build\windows-msvc-default\tests\pp_paint_renderer_stroke_execution_tests.vcxproj /p:Configuration=Debug /p:Platform=x64
 ```
 ````