основное сделано

backend/Tnsu.ApprovalRoute.Application/TemplateRouteSteps/TemplateRouteStepService.cs

@@ -16,7 +16,7 @@ public sealed class TemplateRouteStepService(ApprovalRouteDbContext db)
             .OrderBy(x => x.OrderNo)
             .Select(x => new TemplateRouteStepDto(
                 x.Id, x.OrderNo, x.ExecutorEmail, x.Position, x.ProjectRole, x.HeadType, x.Status, x.RouteId, x.AllowReassignToOtherApprovers,
-                x.FieldName, x.Operation, x.Value))
+                x.FieldName, x.Operation, x.Value, null, x.SlaHours, x.AskOverdueReason))
             .ToListAsync(cancellationToken);
 
         return Result.Ok<IReadOnlyList<TemplateRouteStepDto>>(items);
@@ -73,7 +73,9 @@ public sealed class TemplateRouteStepService(ApprovalRouteDbContext db)
             AllowReassignToOtherApprovers = r.AllowReassignToOtherApprovers,
             FieldName = r.FieldName,
             Operation = r.Operation,
-            Value = r.Value
+            Value = r.Value,
+            SlaHours = r.SlaHours,
+            AskOverdueReason = r.AskOverdueReason
         };
         db.TemplateRouteSteps.Add(entity);
         await db.SaveChangesAsync(cancellationToken);
@@ -125,6 +127,8 @@ public sealed class TemplateRouteStepService(ApprovalRouteDbContext db)
         entity.FieldName = r.FieldName;
         entity.Operation = r.Operation;
         entity.Value = r.Value;
+        entity.SlaHours = r.SlaHours;
+        entity.AskOverdueReason = r.AskOverdueReason;
         await db.SaveChangesAsync(cancellationToken);
 
         return Result.Ok(await ToDtoWithWarningAsync(entity, route, cancellationToken));
@@ -190,6 +194,10 @@ public sealed class TemplateRouteStepService(ApprovalRouteDbContext db)
         entity.FieldName = fieldName;
         entity.Operation = operation;
         entity.Value = value;
+        // Как и остальные поля в PATCH, null значит «не менять». Вернуть шаг к
+        // наследованию SLA от типа заявки можно через PUT.
+        entity.SlaHours = r.SlaHours ?? entity.SlaHours;
+        entity.AskOverdueReason = r.AskOverdueReason ?? entity.AskOverdueReason;
         await db.SaveChangesAsync(cancellationToken);
 
         return Result.Ok(await ToDtoWithWarningAsync(entity, route, cancellationToken));
@@ -281,5 +289,5 @@ public sealed class TemplateRouteStepService(ApprovalRouteDbContext db)
 
     private static TemplateRouteStepDto ToDto(TemplateRouteStep e) => new(
         e.Id, e.OrderNo, e.ExecutorEmail, e.Position, e.ProjectRole, e.HeadType, e.Status, e.RouteId, e.AllowReassignToOtherApprovers,
-        e.FieldName, e.Operation, e.Value);
+        e.FieldName, e.Operation, e.Value, null, e.SlaHours, e.AskOverdueReason);
 }