feat: implement discount and transport features in the quote system

- Added maximum discount settings configurable by the administrator.
- Implemented discount calculations in the quote confirmation process.
- Introduced transport options with associated costs, including handling for exceeding maximum piece limits.
- Updated frontend to display discounts and transport information in the quote summary.
- Created new database migrations for storing discount and transport settings.
- Developed a new Filament page for managing global discount settings.
- Enhanced email templates to include discount and transport details.
- Added tests to ensure proper functionality of discounts and transport calculations.

backoffice/tests/Feature/ConfiguratorePrezzoTest.php

@@ -315,6 +315,13 @@ class ConfiguratorePrezzoTest extends TestCase
             ->assertJsonPath('prezzo', 775)
             ->assertJsonPath('configurazione.profili_extra', 'COPRIFILI SCATOLATI, 50811_GUIDA 34, HO9320_T/M, NP8300_ALL.30')
             ->assertJsonPath('dettaglio.supplementi.1.metri_lineari', 3);
+
+        // I profili extra si calcolano sul serramento con le finiture: uniforme 500 x 1,27 = 635,
+        // coprifili +3% di 635 = 19,05; la cerniera (+100) viene dopo e non entra nel 3%.
+        $this->prezzo('finestra_2_ante', $misura + ['finitura_interna' => '2', 'finitura_esterna' => '2', 'opzioni' => ['profili_extra' => ['coprifili_scatolati'], 'cerniere_a_scomparsa' => 'si']])
+            ->assertJsonPath('prezzo', 754.05)
+            ->assertJsonPath('dettaglio.subtotali.finitura', 635)
+            ->assertJsonPath('dettaglio.subtotali.profili', 654.05);
     }
 
     public function test_profili_extra_alternativi_e_per_modello(): void