fix(hair): cards follow the scalp normal, three overlapping rows

The first card build anchored every card on a fixed outward vector, so the silhouette
was a spiked crown. Each card is now oriented from the scalp normal at its anchor: the
length runs along the downward tangent, the width across it, and a small tip lift gives
the cut volume. Three overlapping rows (7/9/10) replace the single ring; overlap is
what stops cards reading as separate spikes.

26 cards, 401 verts, 224 quads, 468 tris, still all quads on one head bone.

Recorded as still open: the skin renders darker than the baked diffuse suggests, and
the generated pore and strand textures remain unwired because the material-editing
tool segfaults in the headless commandlet.

TODO.md

@@ -19,7 +19,8 @@ Actionable task list for this project. This file is the single, central place fo
   - `Tools/comfyui_generate.py` drives the local ComfyUI instance (`127.0.0.1:8188`) for textures, writing a JSON sidecar with the model, prompt, seed and full workflow so anything generated can be regenerated or rejected. Installed models include `juggernautXL_ragnarok.safetensors` and `sd-v1-5-inpainting.ckpt`.
   - **Stable Diffusion is not usable for flat skin swatches.** Three attempts on two models produced an anatomical close-up twice and a leather-scale surface once; SDXL has no reliable notion of "texture without anatomy". Skin detail is therefore generated procedurally instead (`Tools/generate_character_textures.py`: tileable octave noise for pores plus a strand-sheet texture for hair).
   - **Hair is now its own asset** (`Tools/character_hair_build.py` → `SM_Char_Hair` → `/Game/Test/Character/CharacterHair`), which is what the `character-artist` skill asks for: cards are a separate mesh, not geometry joined into the body. It imports with its own material slot and is attached in C++ as a second `USkeletalMeshComponent` on `SetLeaderPoseComponent`, so it follows the head bone without a second animation. 321 verts, 192 quads, 404 tris.
-  - **The card layout is still wrong.** The cards are anchored pointing outward, so the silhouette reads as a spiked crown instead of a short cut. Next iteration: orient each card tangentially along the skull, add a second overlapping row, and drive the shape from the scalp normal rather than a fixed outward vector.
+  - **The card layout now hugs the skull.** Each card is oriented by the scalp normal at its anchor — the length runs along the downward tangent, the width across it, and a small lift at the tip gives the cut volume. Three overlapping rows (7/9/10 cards, 26 total, 468 tris) replaced the single outward-pointing ring that read as a spiked crown. Overlap is what stops cards reading as separate spikes.
+  - **Skin still needs work:** it renders darker than the baked diffuse suggests — possibly because the crashed (or half-run) material tool rebuilt the graph — and the generated pore/strand textures are still unwired.
   - `Tools/ue_character_materials.py` (wiring the generated textures into the skin and hair materials) **segfaults in the headless commandlet** when it edits the material graph. Not wired; the hair keeps the dark base colour it carries from Blender. Needs either an editor-session run or a material asset built from scratch instead of edited in place.
 
 - [ ] Tag `v0.2.2` and write `CHANGELOG.md` entry; then remove this section.