refactor(email): replace Task.WhenAll with foreach in SendEmailBehavior

Changed the SendFinalEmailToReceiversAsync method to use a sequential `foreach` loop
instead of `Task.WhenAll` for sending history commands. Added a null check for
receiver emails to prevent potential exceptions.

EnvelopeGenerator.Application/Pdf/Behaviors/SendEmailBehavior.cs

@@ -95,12 +95,18 @@ public class SendEmailBehavior : IPipelineBehavior<BurnPdfCommand, byte[]>
         }
 
         // TODO update CreateHistoryCommand to be able to create all records together
-        await Task.WhenAll(request.Envelope!.EnvelopeReceivers!.Select(receiver => _sender.Send(new CreateHistoryCommand()
+        foreach (var receiver in request.Envelope.EnvelopeReceivers!)
         {
-            EnvelopeId = request.Envelope!.Id,
-            Status = EnvelopeStatus.MessageCompletionSent,
-            UserReference = receiver.Receiver!.EmailAddress,
-        }, cancel)));
+            if (receiver.Receiver?.EmailAddress != null)
+            {
+                await _sender.Send(new CreateHistoryCommand()
+                {
+                    EnvelopeId = request.Envelope.Id,
+                    Status = EnvelopeStatus.MessageCompletionSent,
+                    UserReference = receiver.Receiver.EmailAddress,
+                }, cancel);
+            }
+        }
     }
 
     private static bool SendFinalEmailWithAttachment(int type) => type == (int)FinalEmailType.YesWithAttachment;

EnvelopeGenerator.Application/Pdf/BurnPdfCommand.cs

@@ -110,6 +110,8 @@ public class BurnPdfCommandHandler : IRequestHandler<BurnPdfCommand, byte[]>
 
         request.Envelope = await envQuery
             .Include(env => env.Documents!).ThenInclude(doc => doc.Elements!).ThenInclude(element => element.Annotations)
+            .Include(env => env.User)
+            .Include(env => env.EnvelopeReceivers!).ThenInclude(envRcv => envRcv.Receiver)
             .FirstOrDefaultAsync(cancel)
             ?? throw new BadRequestException($"Envelope could not be found. Request details:\n" +
                 request.ToJson(Format.Json.ForDiagnostics));

EnvelopeGenerator.Finalizer/appsettings.Development.json

@@ -1,7 +1,7 @@
 {
   "Logging": {
     "LogLevel": {
-      "Default": "Information",
+      "Default": "Error",
       "Microsoft.Hosting.Lifetime": "Information"
     }
   },

EnvelopeGenerator.Finalizer/appsettings.Job.json

@@ -1,8 +1,11 @@
 {
   "FinishEnvelopeJob": {
-    "CronExpression": "* * * * * ?"
+    "CronExpression": "0 0/1 * 1/1 * ? *"
   },
   "EnvelopeTaskApiJob": {
-    "CronExpression": "* * * * * ?"
+    "CronExpression": "0 0/1 * 1/1 * ? *"
+  }
+  "Expressions": {
+    "PerSec": "* * * * * ?"
   }
 }