Rebuild the NPC hands and add a hand capture

TODO.md

@@ -116,9 +116,12 @@ and equipment fit.
 
 ### Hands, feet and clothing
 
-- [ ] Refine hands and fingers enough to read at conversation distance without exceeding the
-      character triangle budget; check grip alignment for phone, cup, clipboard, camera, sign,
-      flashlight, wand and radio.
+- [x] Refine hands and fingers enough to read at conversation distance without exceeding the
+      character triangle budget. (Wider palm, two-segment bent fingers with rounded tips, separate
+      thumb; optional `--view=hand` capture and `sheet_npc_hands_compare.jpg`.)
+- [ ] Fix grip alignment for phone, cup, clipboard, camera, sign, flashlight, wand and radio
+      against the new palm/finger geometry. (Several props still occlude the palm or float beside
+      it in the hand capture.)
 - [ ] Audit shoes/boots for silhouette, grounding and contact with the floor; preserve the
       responder and firefighter footwear language.
 - [ ] Improve clothing layer transitions at collars, cuffs, plackets, waistbands, pockets, badges