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.

src/test/tests/test_npc_character.gd

@@ -47,6 +47,14 @@ func test_hand_items_are_known_and_deterministic() -> bool:
 			Rules.NpcType.TOURIST, seed_value * 31)
 	return TestUtils.check(ok, "hand items stay in the catalogue and are deterministic")
 
+func test_photo_prop_only_shows_for_camera_poses() -> bool:
+	return TestUtils.check(
+		not NpcAvatar.photo_prop_visible_for_pose("idle")
+			and not NpcAvatar.photo_prop_visible_for_pose("perform")
+			and NpcAvatar.photo_prop_visible_for_pose("photo")
+			and NpcAvatar.photo_prop_visible_for_pose("film"),
+		"camera bag prop is hidden outside photo/film poses")
+
 func test_idle_styles_are_known() -> bool:
 	var allowed := ["phone", "crossed", "look", "clipboard", "breathe"]
 	var ok := true