Refit the tourist backpack and photo prop

Hide the tourist photo-pose bag outside camera poses, flatten the backpack straps onto the chest, rebuild the gear GLB/AO and publish the before/after NPC sheet.

CHANGELOG.md

@@ -4,6 +4,15 @@ All notable user-facing changes to Gig Line. The format follows
 [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and versions use
 Semantic Versioning.
 
+## [Unreleased]
+
+### Fixed
+
+- Tourists no longer appear to carry two backpacks: the photo-pose camera bag is
+  hidden except while they are actually taking a picture.
+- Backpack shoulder straps are now flattened bands that sit outside the chest
+  instead of thin rods partly buried in the torso.
+
 ## [0.9.3] — 2026-11-02
 
 ### Added