Tidy merchant schedule naming

Co-authored-by: StuartFerguson <16325469+StuartFerguson@users.noreply.github.com>

Author: Copilot

TransactionProcessor.BusinessLogic.Tests/Manager/TransactionProcessorManagerTests.cs

@@ -373,7 +373,7 @@ public async Task TransactionProcessorManager_GetMerchantSchedule_MerchantSchedu
         }
 
         [Fact]
-        public async Task TransactionProcessorManager_GetMerchantSchedule_MerchantScheduleNotCreated_ErrorThrown()
+        public async Task TransactionProcessorManager_GetMerchantSchedule_MerchantScheduleNotCreated_ReturnsFailure()
         {
             this.AggregateService
                 .Setup(m => m.GetLatest<MerchantScheduleAggregate>(It.IsAny<Guid>(), It.IsAny<CancellationToken>()))

TransactionProcessor/Factories/ModelFactory.cs

@@ -512,17 +512,17 @@ public static MerchantResponse ConvertFrom(Models.Merchant.Merchant merchant)
             return merchantResponse;
         }
 
-        public static MerchantScheduleResponse ConvertFrom(TransactionProcessor.Models.MerchantSchedule.MerchantSchedule schedule)
+        public static MerchantScheduleResponse ConvertFrom(TransactionProcessor.Models.MerchantSchedule.MerchantSchedule merchantSchedule)
         {
-            if (schedule == null)
+            if (merchantSchedule == null)
             {
                 return null;
             }
 
             return new MerchantScheduleResponse
             {
-                Year = schedule.Year,
-                Months = schedule.Months.Select(month => new MerchantScheduleMonthResponse
+                Year = merchantSchedule.Year,
+                Months = merchantSchedule.Months.Select(month => new MerchantScheduleMonthResponse
                 {
                     Month = month.Month,
                     ClosedDays = [.. month.ClosedDays]