Prototype a more realistic face on npc_casual (higher subdivision, brow ridge, both lids, fuller lip)

MEMORY.md

@@ -128,6 +128,10 @@ canonical implemented-features list in `docs/development-status.md`.
   all local lights use `1.0`.
 - glTF `baseColorFactor` is LINEAR — writing sRGB makes props pastel; `srgb_to_linear()` is applied
   in `build_glb`. A new/changed `.glb` needs `godot --headless --import` before `load()` sees it.
+- **Rebuilding a character GLB also requires re-baking its AO** (`tools/bake_ao.py -- --only
+  <name>`). `blender_assets.py build` writes the GLB only; the old `<name>_ao.png` then maps onto
+  the new geometry and produces large dark cheek/jaw blotches. Bake the AO, re-import, and refresh
+  the stale `.godot` cache (scratch-copy import) before judging a face/body change.
 - `Save.SETTINGS_FILE` is declared and unused; settings persist through
   `load_settings()`/`save_settings()`.
 - Crowd reactions emit `event_bus.crowd_changed`; `GameManager._connect_crowd()` must reconnect