Share CanvasLayer GL dispatch adapters

docs/modernization/build-inventory.md

@@ -518,8 +518,12 @@ powershell -ExecutionPolicy Bypass -File scripts\automation\apple-remote-build.p
   paths also consume backend-owned blend-state tokens.
   Canvas layer cube/equirect generation, clear, restore, and snapshot paths
   also consume backend-owned cube/2D texture targets, active texture units,
-  cube texture binding, blend/clear state, viewport execution, target-aware
-  framebuffer-to-texture copies, and RGBA8 read/write pixel mapping.
+  cube texture binding, blend/clear state, viewport execution, color-buffer
+  clear, clear-color query/restore, and RGBA8 read/write pixel mapping. Their
+  active-texture, cube-texture binding, viewport, blend capability,
+  clear-color, and color-buffer clear adapter endpoints now share
+  `legacy_ui_gl_dispatch`; the retained cube-face framebuffer-to-texture copy
+  remains tracked by DEBT-0036.
   `NodePanelGrid` heightmap preview and lightmap baking also consume
   backend-owned texture readback formats, sampler filters, depth/blend state,
   depth clears, viewport queries, color-mask booleans, active texture units,
@@ -558,6 +562,11 @@ powershell -ExecutionPolicy Bypass -File scripts\automation\apple-remote-build.p
   `CanvasMode` overlay, mask, transform, and canvas-tip pick paths now also
   share that bridge for active texture, capability query/apply, viewport,
   read-framebuffer query, and RGBA8 pixel-readback adapter endpoints.
+  `CanvasLayer` cube/equirect generation and frame clears also share the bridge
+  for active texture, cube texture binding, viewport execution, blend
+  capability execution, clear-color query/restore, and color-buffer clear
+  adapter endpoints, while its cube-face framebuffer-to-texture copy remains a
+  retained local copy bridge.
   `NodePanelGrid` heightmap draw and bake setup also shares it for active
   texture, depth/blend capability query/apply, viewport query/execution, depth
   clears, and color-write-mask adapter endpoints.