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

deploy/Caddyfile.production

@@ -0,0 +1,129 @@
+# Existing Sub2API and blog sites on the Singapore host.
+api.novamailio.com {
+	@long_stream path /v1/responses /responses
+
+	handle @long_stream {
+		reverse_proxy 127.0.0.1:8080 {
+			flush_interval -1
+			stream_close_delay 5m
+			transport http {
+				keepalive 30s
+				keepalive_interval 15s
+				keepalive_idle_conns_per_host 128
+			}
+		}
+	}
+
+	handle {
+		reverse_proxy 127.0.0.1:8080
+	}
+}
+
+xiangking.novamailio.com {
+	root * /var/www/xiangking-blog
+	encode zstd gzip
+
+	@assets path /assets/*
+	header @assets Cache-Control "public, max-age=31536000, immutable"
+
+	file_server
+}
+
+whaletown.novamailio.com {
+	log {
+		output file /var/log/caddy/whaletown-access.json {
+			roll_size 100MiB
+			roll_keep 10
+			roll_keep_for 720h
+		}
+		format json
+	}
+
+	encode zstd gzip
+	root * /var/www/whaletown/site
+
+	header {
+		X-Content-Type-Options nosniff
+		Referrer-Policy strict-origin-when-cross-origin
+	}
+
+	@immutable_pack {
+		path /play/packs/*.pck
+		file {path}
+	}
+	header @immutable_pack {
+		Cache-Control "public, max-age=31536000, immutable"
+		Content-Type "application/octet-stream"
+	}
+
+	@immutable_admin path /admin/assets/*
+	header @immutable_admin Cache-Control "public, max-age=31536000, immutable"
+
+	@pack_manifest path /play/packs/manifest.json
+	header @pack_manifest Cache-Control "no-cache"
+
+	@runtime path /play/index.js /play/index.wasm /play/index-*.pck /play/index.audio*.js
+	header @runtime Cache-Control "public, max-age=14400"
+
+	@html path / /index.html /play /play/ /play/index.html /admin /admin/ /admin/index.html
+	header @html Cache-Control "no-cache"
+
+	@play_without_slash path /play
+	redir @play_without_slash /play/ 308
+
+	handle_path /play/* {
+		root * /var/www/whaletown/site/play
+		file_server
+	}
+
+	@game path /game*
+	handle @game {
+		reverse_proxy http://124.221.77.216 {
+			header_up Host 124.221.77.216
+		}
+	}
+
+	@location path /location-broadcast
+	handle @location {
+		reverse_proxy http://124.221.77.216 {
+			header_up Host 124.221.77.216
+		}
+	}
+
+	@notice path /ws/notice
+	handle @notice {
+		reverse_proxy http://124.221.77.216 {
+			header_up Host 124.221.77.216
+		}
+	}
+
+	@account_assets path /assets/account/*
+	handle @account_assets {
+		reverse_proxy http://124.221.77.216 {
+			header_up Host 124.221.77.216
+		}
+	}
+
+	redir /api /api/
+	handle /api/* {
+		reverse_proxy http://124.221.77.216 {
+			header_up Host 124.221.77.216
+		}
+	}
+
+	redir /admin /admin/
+	handle_path /admin/* {
+		root * /var/www/whaletown/admin
+		try_files {path} /index.html
+		file_server
+	}
+
+	handle /downloads/* {
+		header Content-Disposition "attachment"
+		file_server
+	}
+
+	handle {
+		file_server
+	}
+}