fix(uplifts): attribute audit to requested work order

Use the operation work order when staging uplift audit logs so a dispatch linked through DispatchWorkOrders cannot write the event to its primary work order. Add coverage for the cross-work-order fallback case.

SeaHaven.Services/Implementation/WorkOrderUpliftService.cs

@@ -437,7 +437,7 @@ namespace SeaHaven.Services.Implementation
         {
             await _dispatchData.StageAuditLogAsync(new WorkOrderAuditLog
             {
-                WorkOrderId = dispatch.WorkOrderId ?? workOrderId,
+                WorkOrderId = workOrderId,
                 UserId = userId,
                 FieldName = $"Dispatch {dispatch.DispatchNumber} Uplift",
                 OldValue = isStatusTransition ? oldValue.ToString() : $"${Convert.ToDecimal(oldValue):F2}",

SeaHavenIndustries.Tests/WorkOrderUpliftServiceTests.cs

@@ -143,6 +143,37 @@ public sealed class WorkOrderUpliftServiceTests
         Assert.Equal(1, await context.DispatchUpliftRequests.CountAsync());
     }
 
+    [Fact]
+    public async Task CreateAsync_WithoutPrimaryDispatch_AuditsRequestedWorkOrderWhenDispatchBelongsToAnother()
+    {
+        await using var context = CreateContext();
+        var (workOrder, dispatch) = await SeedWorkOrderAsync(context, primaryDispatchId: null);
+        context.workOrders.Add(new WorkOrder
+        {
+            Id = 2,
+            InternalWONumber = "10000000002",
+            AccountId = 1,
+            WorkOrderType = WorkOrderType.PM,
+        });
+        dispatch.WorkOrderId = 2;
+        context.DispatchWorkOrders.Add(new DispatchWorkOrder
+        {
+            DispatchId = dispatch.Id,
+            WorkOrderId = workOrder.Id,
+        });
+        await context.SaveChangesAsync();
+
+        var service = NewService(context);
+        await service.CreateAsync(
+            workOrder.Id,
+            new CreateWorkOrderUpliftRequestDto { Amount = 400m, Notes = "Associated dispatch" },
+            Dispatcher(),
+            CancellationToken.None);
+
+        var audit = Assert.Single(context.WorkOrderAuditLogs);
+        Assert.Equal(workOrder.Id, audit.WorkOrderId);
+    }
+
     [Fact]
     public async Task CreateAsync_PmAmountAboveCap_CreatesPendingRequest()
     {