feat: add previous configuration handling for user selections in quotes

- Implemented session storage management for the last configuration choices made by the user.
- Added functionality to prompt users when changing models to retain their previous selections.
- Introduced methods to apply previous choices to the newly loaded model, including finishes, handles, glass types, and options.
- Enhanced user experience by ensuring selections are automatically applied where applicable.

backoffice/app/Models/Concerns/HaImmaginiCatalogo.php

@@ -0,0 +1,31 @@
+<?php
+
+namespace App\Models\Concerns;
+
+use Illuminate\Support\Facades\Storage;
+
+/**
+ * Immagini del configuratore salvate sul disco public: rimuove i file sostituiti o del
+ * record eliminato. Ogni record ha percorsi propri, quindi nessun file è condiviso.
+ *
+ * Il modello dichiara le colonne con `protected static array $immagini = [...]`.
+ */
+trait HaImmaginiCatalogo
+{
+    protected static function bootHaImmaginiCatalogo(): void
+    {
+        static::updated(function ($record): void {
+            foreach (static::$immagini as $colonna) {
+                $vecchia = $record->getOriginal($colonna);
+                if ($record->wasChanged($colonna) && $vecchia) {
+                    Storage::disk('public')->delete($vecchia);
+                }
+            }
+        });
+
+        static::deleted(function ($record): void {
+            $file = array_filter(array_map(fn ($c) => $record->{$c}, static::$immagini));
+            Storage::disk('public')->delete($file);
+        });
+    }
+}