Add ticket system with QR scanner and PDF generation

- Add ticket validation and check-in API endpoints
- Add PDF ticket generation with QR codes (pdfkit)
- Add admin QR scanner page with camera support
- Add admin site settings page
- Update email templates with PDF ticket download link
- Add checked_in_by_admin_id field for audit tracking
- Update booking success page with ticket download
- Various UI improvements to events and booking pages

frontend/src/components/layout/Footer.tsx

@@ -31,13 +31,9 @@ export default function Footer() {
                 className="h-10 w-auto"
               />
             </Link>
-            <p className="mt-3 text-gray-600 max-w-md">
+            <p className="mt-3 max-w-md" style={{ color: '#002F44' }}>
               {t('footer.tagline')}
             </p>
-            {/* Local SEO text */}
-            <p className="mt-2 text-sm text-gray-500">
-              Language Exchange Events in Asunción, Paraguay
-            </p>
           </div>
 
           {/* Quick Links */}
@@ -84,7 +80,7 @@ export default function Footer() {
           {/* Social */}
           {socialLinks.length > 0 && (
             <div>
-              <h3 className="font-semibold text-primary-dark mb-4">
+              <h3 className="font-semibold mb-4" style={{ color: '#002F44' }}>
                 {t('footer.social')}
               </h3>
               <div className="flex flex-wrap gap-3">
@@ -112,13 +108,14 @@ export default function Footer() {
               <Link
                 key={link.slug}
                 href={`/legal/${link.slug}`}
-                className="text-gray-500 hover:text-primary-dark transition-colors text-sm"
+                className="hover:opacity-70 transition-colors text-sm"
+                style={{ color: '#002F44' }}
               >
                 {locale === 'es' ? link.es : link.en}
               </Link>
             ))}
           </div>
-          <div className="text-center text-gray-500 text-sm">
+          <div className="text-center text-sm" style={{ color: '#002F44' }}>
             {t('footer.copyright', { year: currentYear })}
           </div>
         </div>