The Room map pass: TV video, photo materials, prefab cleanup

- New TV Video material + environment video clip on the plasma TV
- New P1002728 photo material/texture, P1002712 texture, three new
  paint prefab variants
- Living-room prefab variants updated across the set
- Remove stale generated concealment collider PolyShape assets
- The Room scene content pass

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Assets/Videos.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: e43b075675e02134199b0a0483cda24b
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: