ProjectManager and SiteManager now skip env vars that belong to a more
specific plugin type (e.g. WORDPRESS_ADVANCED_*) when discovering sites
for a shorter prefix (WORDPRESS_). This prevents ghost projects, ERROR
logs, and false health alerts on startup.
Also downgrades Docker socket errors in WP-CLI to warnings — if Docker
socket is not mounted, WP-CLI features are silently unavailable instead
of logging ERROR and triggering health alerts.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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