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.

assets/models/blender/manifest.json

@@ -29,8 +29,8 @@
       "bounds_godot": {
         "max": [
           0.15,
-          0.3,
-          0.141
+          0.297,
+          0.214
         ],
         "min": [
           -0.15,
@@ -45,8 +45,8 @@
         "plastic_black"
       ],
       "path": "assets/models/blender/npc_gear/backpack.glb",
-      "triangles": 316,
-      "vertices": 360
+      "triangles": 380,
+      "vertices": 406
     },
     "beanie": {
       "attach": "head",