fix/syntax-error-and-csp
dev
Replace ternary operator in native_js block with explicit if-else — El's parser chokes on '?' adjacent to single-quoted strings inside native_js(), causing an Uncaught SyntaxError that prevents the entire IIFE from running and leaves signInWith undefined. Add missing CSP entries to all three header functions: - js.stripe.com → script-src and frame-src (Stripe JS and Elements iframe) - fonts.googleapis.com → style-src (Google Fonts CSS) - fonts.gstatic.com → font-src (Google Fonts files) - static.cloudflareinsights.com → script-src (Cloudflare beacon)