Route Texture2D through renderer GL

docs/modernization/roadmap.md

@@ -540,6 +540,10 @@ tested `pp_renderer_gl` saved-state dispatch contracts, covering capability
 state, viewport, clear color, framebuffer/program bindings, active texture,
 2D texture slots, samplers, and cube-map binding without changing the legacy
 utility's public fields.
+Legacy `Texture2D` allocation, binding, deletion, mipmap generation, region
+update, and framebuffer readback now execute through tested `pp_renderer_gl`
+texture dispatch contracts. This keeps the app API stable while moving another
+resource lifecycle path behind the renderer backend boundary.
 Windows RenderDoc frame capture hooks now also dispatch through
 `PlatformServices`, keeping capture integration in the platform service while
 leaving non-Windows adapters as no-ops.