- Tunnel, How-To, and NGINX raw-map copy use label swap + ok/err styles - Remove unused howto flash container; document behavior in admin-ui.md
- Add magesail-clipboard.js (clipboard API + execCommand fallback) - Tunnel: copy store code, key, Holesail command, log tail; wire polling UI - How-To: copy per code block; Howto block + magesail-howto-copy.js - NGINX map: copy raw map from textarea; translations in Map block - Document copy UX in docs/admin-ui.md