Shortcodes: add home blocks and global custom CSS setting

plugins/artists/plugin.php

@@ -2,10 +2,60 @@
 declare(strict_types=1);
 
 use Core\Http\Router;
+use Core\Services\Database;
+use Core\Services\Shortcodes;
 use Plugins\Artists\ArtistsController;
 
 require_once __DIR__ . '/ArtistsController.php';
 
+Shortcodes::register('new-artists', static function (array $attrs = []): string {
+    $limit = max(1, min(20, (int)($attrs['limit'] ?? 6)));
+    $db = Database::get();
+    if (!($db instanceof \PDO)) {
+        return '';
+    }
+
+    try {
+        $stmt = $db->prepare("
+            SELECT name, slug, country, avatar_url
+            FROM ac_artists
+            WHERE is_active = 1
+            ORDER BY created_at DESC, id DESC
+            LIMIT :limit
+        ");
+        $stmt->bindValue(':limit', $limit, \PDO::PARAM_INT);
+        $stmt->execute();
+        $rows = $stmt->fetchAll(\PDO::FETCH_ASSOC) ?: [];
+    } catch (\Throwable $e) {
+        return '';
+    }
+
+    if (!$rows) {
+        return '<div class="ac-shortcode-empty">No artists available yet.</div>';
+    }
+
+    $cards = '';
+    foreach ($rows as $row) {
+        $name = htmlspecialchars((string)($row['name'] ?? ''), ENT_QUOTES, 'UTF-8');
+        $slug = rawurlencode((string)($row['slug'] ?? ''));
+        $country = htmlspecialchars(trim((string)($row['country'] ?? '')), ENT_QUOTES, 'UTF-8');
+        $avatar = trim((string)($row['avatar_url'] ?? ''));
+        $avatarHtml = $avatar !== ''
+            ? '<img src="' . htmlspecialchars($avatar, ENT_QUOTES, 'UTF-8') . '" alt="" loading="lazy">'
+            : '<div class="ac-shortcode-cover-fallback">AC</div>';
+
+        $cards .= '<a class="ac-shortcode-artist-card" href="/artist?slug=' . $slug . '">'
+            . '<div class="ac-shortcode-artist-avatar">' . $avatarHtml . '</div>'
+            . '<div class="ac-shortcode-artist-meta">'
+            . '<div class="ac-shortcode-artist-name">' . $name . '</div>'
+            . ($country !== '' ? '<div class="ac-shortcode-artist-country">' . $country . '</div>' : '')
+            . '</div>'
+            . '</a>';
+    }
+
+    return '<section class="ac-shortcode-artists"><div class="ac-shortcode-artists-grid">' . $cards . '</div></section>';
+});
+
 return function (Router $router): void {
     $controller = new ArtistsController();
     $router->get('/artists', [$controller, 'index']);