SB Gateway 1.6.61

• Updated Xray to 0888beb (26.10.10 with upstream fixes through October 14), including gRPC reconnection and Hysteria cleanup fixes.
• Reduced duplicated domain rules in routing and DNS; catalog updates now parse bounded streams.
• Fixed large and idle gRPC/XHTTP uploads through Nginx.
• Aligned Go process memory budgets with container limits, including temporary certificate and validation tasks.
• Fixed saving default recovery settings and preserved panel drafts across sections with one Apply.
• Simplified installation guidance and retained the public release history.