- clash.yaml template (proxy-providers -> x-ui base64 sub URL) in assets/clash/
- install_clash_sub() downloads and substitutes domain/sub_path at install time
- nginx: map $http_user_agent $is_clash_client detects Clash/Mihomo/Stash/Surfboard
- sub_path locations rewrite to internal /__clash_sub on UA match
- /__clash_sub serves /var/www/subpage/clash.yaml as text/yaml
- Regular clients still proxy to x-ui sub port unchanged
- Uninstall cleans /var/www/subpage/
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
