fix: return retry policy fields from subscription Get/Search

Get.cs and Search.cs never mapped RetryPolicyId/CustomRetryPolicy onto
the response, so a saved retry policy vanished on refresh even though
the write path was correct.

Author: hamzahalq

SW.Bitween.Api/Resources/Subscriptions/Get.cs

@@ -62,6 +62,8 @@ public async Task<object> Handle(int key)
                     CategoryCode = subscriber.Category?.Code,
                     CategoryId = subscriber.CategoryId,
                     WorkGroupId = subscriber.WorkGroupId,
+                    RetryPolicyId = subscriber.RetryPolicyId,
+                    CustomRetryPolicy = subscriber.CustomRetryPolicy,
                     Schedules = subscriber.Schedules.Select(s => new ScheduleView
                     {
                         Backwards = s.Backwards,

SW.Bitween.Api/Resources/Subscriptions/Search.cs

@@ -62,7 +62,9 @@ join document in _dbContext.Set<Document>() on subscriber.DocumentId equals docu
                     WorkGroupId =  subscriber.WorkGroupId,
                     CategoryDescription = subscriber.Category.Description,
                     CategoryCode = subscriber.Category.Code,
-                    
+                    RetryPolicyId = subscriber.RetryPolicyId,
+                    CustomRetryPolicy = subscriber.CustomRetryPolicy,
+
                 };
 
             query = query.AsNoTracking().AsQueryable();