v1.1.0 - Season Template page template

Adds a real WordPress page template, Season Template, registered from the plugin so it survives a theme change. The site previously had no page templates at all. It renders through the theme page.php and forces Kadence per-page settings (title hidden, fullwidth layout, unboxed content, no vertical padding) via a get_post_metadata filter, fixing the boxed-container escape and inner-width mismatch on the season page. Installable zip attached (top folder ars-nova-core/).