feat: expand multiplayer, chat, and release support

- add network NPC synchronization and dialogue interactions
- add world bulletin publishing and display
- improve authentication, session refresh, and appearance sync
- synchronize player direction and movement animations
- improve input focus and progressive Web loading
- add macOS/Windows builds and deployment configuration
- include required fonts, shaders, and runtime assets

scripts/build_progressive_web.sh

@@ -41,6 +41,8 @@ work_zone=$(build_pack "work_zone" "Scene Work Zone")
 cafe=$(build_pack "cafe_interior" "Scene Cafe")
 personal_space=$(build_pack "personal_space" "Scene Personal Space")
 auth=$(build_pack "auth" "Scene Auth")
+auth_pack_size=$(printf '%s' "$auth" | jq -r '.size')
+perl -0pi -e "s/__WHALETOWN_AUTH_PACK_SIZE__/$auth_pack_size/g" "$WEB_DIR/index.html"
 
 jq -n \
 	--argjson square "$square" \