Add Eden Smash Ultimate VPS room deployment scripts.

Provides install/update systemd workflow for git-based deploys to Ubuntu VPS.

Co-authored-by: Cursor <[email protected]>

env.example

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+# Copy this file to .env and fill in your values:
+#   cp env.example .env && chmod 600 .env && nano .env
+
+# Required for public lobby listing (from ~/.config/eden/qt-config.ini on your PC)
+EDEN_TOKEN=
+
+# Room settings (room name must be 4–20 characters)
+ROOM_NAME=SmashLobby
+ROOM_DESCRIPTION=Super Smash Bros Ultimate public lobby
+PREFERRED_GAME=Super Smash Bros. Ultimate
+PREFERRED_GAME_ID=01006A800016E000
+
+# Network
+PORT=24872
+MAX_MEMBERS=8
+BIND_ADDRESS=0.0.0.0
+# Leave empty for no password
+PASSWORD=
+
+# Metaserver (public listing)
+WEB_API_URL=https://api.ynet-fun.xyz
+
+# eden-room binary download (change when updating Eden)
+EDEN_RELEASE_VERSION=v0.2.0-rc2
+EDEN_ROOM_ARCH=x86_64-unknown-linux-musl
+# EDEN_ROOM_ARCH=aarch64-unknown-linux-musl   # use on ARM VPS