Release v0.4.0 First-class HTMX support: - App::renderHtmx() — htmx-aware fragment / full-page rendering (HX-Target derived) - HtmxResponse::triggerJSON() + chain-back response() - Consolidated HTMX guide (docs/htmx.md + /htmx page), already had full HX-* header coverage Also: - $req / $res handler-parameter aliases (route / api / fallback / template closures) - Env config for the whole CGI subprocess pool (ZEALPHP_CGI_WORKERS + 4 more) - Foreground start banner for a plain 'php app.php' - Redesigned scaffold: Terminal-Luxury theme + live htmx playground