Stable v2.6.30

• fix(ssl): www.* of a site-less redirect domain served the wrong certificate
• fix(webstats): drop GoAccess '-' placeholder rows from category tables
• fix(webstats): GoAccess JSON tables empty — --output-format is deprecated
• fix(plesk-import): heal subdomains previously imported as standalone sites
• feat(webstats): native stats page with time-range, replacing the GoAccess iframe
• fix(plesk-import): subdomains, Obsidian schema, SSH-key DB, visible data loss
• fix(i18n): portal snapped back to server default language after login