upgrade matrice with files

public/userarea/render_production_card.php

@@ -205,18 +205,27 @@ if ($matricePhoto) {
                         <?php include __DIR__ . "/components/photo_buttons.php"; ?>
                     </div>
 
+                    <!-- 📎 FILE CORRELATI MATRICE -->
+                    <button type="button"
+                        class="qc-btn show-matrice-files"
+                        data-matrice-id="<?= (int)($r['matrice_id'] ?? 0) ?>"
+                        data-matrice-nome="<?= htmlspecialchars($r['matrice'] ?? '', ENT_QUOTES) ?>"
+                        title="File matrice">
+                        <i class="bi bi-paperclip"></i>
+                    </button>
+
                     <!-- 🎯 UN BADGE PER OGNI STRUMENTO, SUBITO DOPO LE FOTO -->
                     <?php foreach ($toolsArray as $toolName): ?>
                         <span class="badge tools-badge"
                             style="
-                      background:#0d6efd;
-                      color:#ffffff;
-                      font-size:0.78rem;
-                      font-weight:600;
-                      border-radius:999px;
-                      padding:0.30rem 0.85rem;
-                      white-space:nowrap;
-                  ">
+              background:#0d6efd;
+              color:#ffffff;
+              font-size:0.78rem;
+              font-weight:600;
+              border-radius:999px;
+              padding:0.30rem 0.85rem;
+              white-space:nowrap;
+          ">
                             <?= htmlspecialchars($toolName) ?>
                         </span>
                     <?php endforeach; ?>