Share retained GL runtime dispatch adapters

docs/modernization/debt.md

@@ -1,7 +1,7 @@
 # Modernization Debt Log
 
 Status: live
-Last updated: 2026-06-05
+Last updated: 2026-06-06
 
 Every shortcut, temporary adapter, retained vendored dependency, skipped
 platform gate, compatibility shim, or incomplete automation path must be
@@ -417,6 +417,13 @@ agent or engineer to remove them without reconstructing context from chat.
   `src/main.cpp`, and `src/app_shaders.cpp` no longer carry duplicated raw
   runtime-query callback clusters. Renderer services still need to own runtime
   and capability probing before this bridge can be removed.
+- 2026-06-06: DEBT-0036/DEBT-0017 were narrowed again. Retained HMD viewport
+  setup, text atlas texture-unit activation, Windows/legacy default framebuffer
+  binding, platform render-hint enable callbacks, the global OpenGL error drain,
+  and Windows debug message callback installation now reuse
+  `legacy_ui_gl_dispatch`/`legacy_gl_runtime_dispatch` instead of file-local raw
+  OpenGL entrypoint adapters. Renderer/context services still need to own these
+  paths before the retained dispatch bridges can be removed.
 - 2026-06-05: DEBT-0061 was opened. `pp_platform_api` now owns a tested desktop
   XR runtime-selection policy that prefers OpenXR and labels OpenVR as a
   legacy fallback; `WindowsPlatformServices` consumes that policy before