- Implemented the full Fat Bottom Grille storefront and staff dashboard.

Highlights include configurable menus, specials, cart/checkout, taxes, 
customer accounts with email 2FA, newsletters, analytics, refunds, 
PDF/CSV exports, Square/Mailgun adapters, and optional MySQL migration.

See README.md for setup and production configuration. Verified 
PHP/JavaScript syntax, responsive layouts, registration, 2FA, checkout, 
dashboard workflows, settings persistence, and PDF generation.
Real Square, Mailgun, and MySQL connections require credentials/server 
access. Square implementation follows the official Payments API and 
Refunds API.

views/partials/flash.php

@@ -0,0 +1,11 @@
+<?php if (!empty($flashMessages)): ?>
+    <div class="<?= isset($adminPage) ? 'admin-flash-wrap' : 'container flash-wrap' ?>" aria-live="polite">
+        <?php foreach ($flashMessages as $message): ?>
+            <div class="flash flash-<?= e($message['type']) ?>">
+                <span><?= e($message['message']) ?></span>
+                <button type="button" class="flash-close" aria-label="Dismiss message">&times;</button>
+            </div>
+        <?php endforeach; ?>
+    </div>
+<?php endif; ?>
+