feat: Add scripts and systemd services for SteamOS session management and game launching

ansible/files/game_station/bin/system/steamos-update

@@ -0,0 +1,11 @@
+#!/bin/bash
+set -euo pipefail
+LOGFILE="$HOME/.local/logs/steamos-update.log"
+
+log() { echo "[$(date --iso-8601=seconds)] $*" | tee -a "$LOGFILE"; }
+
+log "Starting SteamOS update..."
+log "Arguments passed: ${@}"
+echo "Not applicable for this OS"
+# TODO: Implement SteamOS update logic for now inform no update available
+exit 7