fix photo upload endpoint and align CommessaWeb field names with API docs

- CommessaWeb POST: rename fields per documentation — CustomerManager, PriceMultiplier, CertestObjectMasterData, CertestServiceMasterData, CustomerSupplier
- Move DeliveryRequest (ConsegnaRichiesta) from CommessaWeb to Campione
- Photo upload: change endpoint from AllegatoCommessaWeb to Campione({id})/UploadCampioneFile, upload to all campioni
- postMultipart(): remove commessaId param, send only file field

public/userarea/class/VisualLimsApiClientMock.class.php

@@ -126,9 +126,9 @@ class VisualLimsApiClientMock
         return [];
     }
 
-    public function postMultipart(string $endpoint, string $filePath, string $fileName, int $commessaId): array
+    public function postMultipart(string $endpoint, string $filePath, string $fileName): array
     {
-        error_log("[SIMULATE] POST multipart {$endpoint} file={$fileName} commessaId={$commessaId}");
+        error_log("[SIMULATE] POST multipart {$endpoint} file={$fileName}");
 
         return ['simulated' => true, 'file' => $fileName];
     }