bake: classify teeth into the skeleton (toothless-skull fix)

Teeth (all 28 + both gingivae) are in the dataset, but tissue_of had no dental
category and teeth are not is_a bone in FMA (dentin/enamel, not skeletal element),
so every tooth fell through to the "flesh" default → layer 1 (skin). With skin off
(e.g. the skeleton view) the jaw bones showed but the teeth vanished — a toothless
skull. Add tooth/molar/incisor/canine/premolar/cuspid to the bone name-matcher so
teeth bucket with the skeleton (layer 4); gingiva stays flesh.

Bake-pipeline change — takes effect on the body re-bake (in progress).

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RhpwkHGgia2TuDFvdnuQdE

Author: claude

crates/osint-bake/tools/bake_torso_splat.py

@@ -85,7 +85,11 @@
     ("muscle", ["muscle", "pectoralis", "oblique", "transversus", "diaphragm",
                 "sphincter", "psoas", "piriformis", "obturator"]),
     ("bone", ["vertebra", "rib", "sternum", "clavicle", "scapula", "ilium",
-              "ischium", "pubis", "sacrum", "manubrium", "xiphoid"]),
+              "ischium", "pubis", "sacrum", "manubrium", "xiphoid",
+              # teeth are not is_a bone in FMA (dentin/enamel, not skeletal element), so
+              # they fell through to "flesh" → layer 1 (skin), hidden in the skeleton view
+              # (toothless skull). Bucket them with the skeleton; gingiva stays flesh.
+              "tooth", "molar", "incisor", "canine", "premolar", "cuspid"]),
     ("artery", ["aorta", "artery", "arterial", "trunk"]),
     ("vein", ["vein", "vena", "venous"]),
     ("nerve", ["nerve", "plexus", "ganglion"]),