case 4628 - deleting a work order made from a service request reopens the request

The request's link to the work order item blocked the delete with a database
error (500). Deleting the item now unlinks any request accepted into it and
sets it back to Open, in the same transaction, with a history entry and no
notification. Service request manual page and changelog.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

server/AyaNova/biz/WorkOrderBiz.cs

@@ -2423,6 +2423,21 @@ namespace AyaNova.Biz
                 if (!await OutsideServiceDeleteAsync(ItemId, transaction))
                     return false;
 
+            //case 4628: a customer service request accepted into this item goes back to Open, unlinked (its link blocked the
+            //delete with a raw database error); no notification, an entry in the request's history
+            var acceptedRequests = await ct.CustomerServiceRequest.Where(z => z.WorkOrderItemId == id).ToListAsync();
+            foreach (var csr in acceptedRequests)
+            {
+                csr.WorkOrderItemId = null;
+                csr.Status = CustomerServiceRequestStatus.Open;
+            }
+            if (acceptedRequests.Count > 0)
+            {
+                await ct.SaveChangesAsync();
+                foreach (var csr in acceptedRequests)
+                    await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, csr.Id, AyaType.CustomerServiceRequest, AyaEvent.Modified), ct);
+            }
+
             ct.WorkOrderItem.Remove(dbObject);
             await ct.SaveChangesAsync();