Pass the pre-build NPC review gate

- Add a review harness that stages all eight library characters at portrait, conversation and crowd distance on both maps in day and night.
- Fix the final-context lanyard badge and firefighter helmet fit with runtime attach offsets; the asset-space gear contract is unchanged.
- Record the gate sign-off, refresh the gallery, and move the completed review to DONE.

docs/blender-assets.md

@@ -141,6 +141,10 @@ attach point:
 
 The character previews in `sheet_npc.jpg` are built by importing the gear at
 exactly these points, which gives a quick visual check of the convention.
+`NpcAvatar.GEAR_OFFSETS` applies two final-context nudges after attachment:
+the lanyard moves 4 cm forward so its badge clears the jacket, and the
+firefighter helmet moves 3 cm up so its brim sits above the eyes. The
+`fit` report remains an asset-space measurement of the untouched GLBs.
 
 ## Props