feat(art): add storybook meadow and woodland villagers

docs/FEATURE_PRESENTATION_PERFORMANCE.md

@@ -51,6 +51,25 @@ selection never forces unsupported volumetric fog on.
 
 ## Runtime hot paths already bounded
 
+The woodland storybook art pass adds portable Blender animal meshes and an
+opaque 35-triangle, seven-blade grass tuft. The existing camera-local grass
+field and quality controls own its instance budget; four loaded path strips
+provide disposable grass-clearance data after material isolation. Animal
+appearance is derived from stable NPC IDs, shares mesh resources, and retains
+profession tint, velocity-driven motion, inventory cues and death through the
+existing presentation controllers. No saved state or navigation changes.
+
+Characters and buildings use soft cel bands; tree crowns retain the shared
+breeze with painted color patches. A static procedural cloud sky, cooler
+ambient fill and warm sunlight follow the simulation day/night clock. The
+cloud shader adds no volumetric pass, outline pass or screen-space postprocess.
+See [the asset contract and rebuild commands](../assets/storybook/README.md).
+
+`docs/baselines/storybook_*.png` records the native Metal review. The accompanying
+`storybook_render_metrics.json` records a bounded local 1600×900 static-camera
+sample on Apple M1 Max with six NPCs and High/Balanced/Low settings. Wall-frame
+latency includes vsync and does not close the weak-PC evidence gap below.
+
 - Player interaction and villager inspection probes are throttled/event-driven;
   they no longer rebuild all candidate data every rendered frame.
 - `LoadedResourceSpatialIndex` bounds finite-resource discovery.