Route retained draw state through GL dispatch

docs/modernization/build-inventory.md

@@ -355,10 +355,13 @@ Known local toolchain state:
   atlas texture formats, text mesh buffer targets, attribute component and
   normalization tokens, draw primitive/index type, upload usage, and active
   texture unit selection also consume the backend mapping. Text mesh
-  buffer/VAO creation, deferred index/vertex uploads, and indexed draw calls
-  now consume tested `pp_renderer_gl` mesh dispatch contracts too. Canvas undo/redo
-  dirty-region texture updates and readbacks also consume the backend-owned 2D
-  texture target, RGBA pixel format, and unsigned-byte component mapping.
+  buffer/VAO creation, deferred index/vertex uploads, indexed draw calls, and
+  draw-time texture-unit activation now consume tested `pp_renderer_gl`
+  dispatch contracts too. Canvas undo/redo dirty-region texture updates and
+  readbacks also consume the backend-owned 2D texture target, RGBA pixel
+  format, and unsigned-byte component mapping; canvas stroke commit, thumbnail,
+  and object-draw history paths now consume tested capability-state query
+  dispatch for saved blend state.
   `NodeViewport` preview rendering also consumes backend-owned viewport query,
   clear-color query, color-buffer clear mask, and blend-state tokens.
   `NodeImageTexture` preview drawing also consumes backend-owned fallback 2D
@@ -373,8 +376,8 @@ Known local toolchain state:
   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,
-  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, target-aware
+  framebuffer-to-texture copies, and RGBA8 read/write pixel mapping.
   `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,
@@ -666,12 +669,12 @@ Known local toolchain state:
   color/depth attachment, status-check, and binding-restore dispatch consumed
   by retained `RTT::create`/`RTT::destroy`, tested RTT render-target clear,
   masked color clear with color-write-mask restore, and texture-bind dispatch,
-  tested active-texture dispatch consumed by retained Canvas, NodeCanvas, and
-  NodeStrokePreview texture-unit switches,
+  tested active-texture dispatch consumed by retained Canvas, Font, NodeCanvas,
+  and NodeStrokePreview texture-unit switches,
   tested viewport/scissor/capability dispatch consumed by retained Canvas,
   NodeCanvas, NodeStrokePreview, and HMD render-state paths,
-  tested capability-state query dispatch consumed by retained `NodeCanvas`,
-  `CanvasMode`, and `NodePanelGrid` draw-state restore paths,
+  tested capability-state query dispatch consumed by retained `Canvas`,
+  `NodeCanvas`, `CanvasMode`, and `NodePanelGrid` draw-state restore paths,
   tested viewport query, clear-color query, and clear-color restore dispatch
   consumed by retained `Canvas`, `CanvasLayer`, `NodeCanvas`, and
   `NodeStrokePreview` draw-state paths,
@@ -681,7 +684,8 @@ Known local toolchain state:
   tested pixel-buffer allocation/readback/map/unmap/delete dispatch
   consumed by retained `PBO` recording readbacks, tested framebuffer-to-texture
   copy dispatch consumed by retained canvas/UI paint paths and CanvasLayer
-  cube-face generation, tested framebuffer bind/restore dispatch consumed by
+  cube-face generation, tested cube texture bind dispatch consumed by
+  CanvasLayer equirect export, tested framebuffer bind/restore dispatch consumed by
   retained `RTT` render-target pass entry
   and exit paths, tested depth renderbuffer allocation/delete and framebuffer
   depth attach/detach dispatch consumed by retained RTT and canvas object-drawing helpers,

docs/modernization/debt.md

@@ -16,6 +16,18 @@ agent or engineer to remove them without reconstructing context from chat.
 - Do not close an entry until the removal condition is met and validated.
 - Prefer deleting shortcuts over expanding this log.
 
+## Recent Reductions
+
+- 2026-06-04: DEBT-0036 was narrowed again. Canvas stroke commit,
+  thumbnail, and object-draw history paths now query saved blend state through
+  tested `pp_renderer_gl` capability-state dispatch; CanvasLayer equirect
+  export now binds cube textures through tested `pp_renderer_gl` dispatch; and
+  `Font` text drawing now activates texture units through tested
+  `pp_renderer_gl` dispatch. The debt remains open for live stroke
+  rasterization, dual-brush compositing, pattern feedback math, thumbnail layer
+  compositing, brush-preview compositing, and retained `ShaderManager::ext_*`
+  compatibility fields.
+
 ## Open Debt
 
 | ID | Status | Owner | Item | Reason | Validation | Removal Condition |

docs/modernization/roadmap.md

@@ -1078,13 +1078,15 @@ capability detection also live in `pp_renderer_gl`. Legacy font atlas texture
 formats, text mesh buffer targets, attribute component/normalization, draw
 primitive/index type, upload usage, and active texture unit selection also
 delegate to `pp_renderer_gl`; text mesh buffer/VAO creation, deferred index
-and vertex uploads, and indexed draw calls now execute through the same tested
-mesh dispatch contracts used by `Shape`, leaving the retained `Font` utility
-with thin GL adapter functions for mesh operations.
+and vertex uploads, indexed draw calls, and text draw texture-unit activation
+now execute through the same tested dispatch contracts used by `Shape`, leaving
+the retained `Font` utility with thin GL adapter functions for mesh operations.
 Canvas undo/redo dirty-region texture updates and readbacks now also execute
 through retained `RTT` helpers backed by `pp_renderer_gl`, including 2D texture
 target, dirty-region offsets, RGBA pixel format, and unsigned-byte component
-type mapping.
+type mapping. Canvas stroke commit, thumbnail generation, and object-draw
+history paths now query saved blend state through the same tested capability
+state dispatch before restoring it.
 `NodeViewport` preview rendering now also delegates viewport query,
 clear-color query, color-buffer clear mask, viewport execution, color clear,
 clear-color restore, and blend-state execution through the shared
@@ -1101,8 +1103,8 @@ Simple UI text, text-input, border, scroll, and animation timeline draw paths
 now also execute blend-state changes through the shared UI GL adapter.
 Canvas layer cube/equirect generation, clear, restore, and snapshot paths now
 also delegate cube/2D texture targets, active texture units, blend/clear state,
-viewport execution, target-aware framebuffer-to-texture copies, and RGBA8
-read/write pixel mapping to `pp_renderer_gl`.
+viewport execution, target-aware framebuffer-to-texture copies, cube texture
+binding, and RGBA8 read/write pixel mapping to `pp_renderer_gl`.
 `NodePanelGrid` heightmap preview and lightmap baking now delegate texture
 readback formats, sampler filters, depth/blend state, depth clears, viewport
 queries, color-mask booleans, active texture units, and float render-target