refactor(BurnPdfCommand): update BurnPdfCommand to use EnvelopeQueryBase and enhance request structure

- Replaced record-based BurnPdfCommand with class-based implementation
- Added Envelope property of type EnvelopeQueryBase
- Changed parameters to nullable (Document, InstantJSONList)
- Added ByCronService flag for cron-based PDF burning control
- Updated query logic to use request.Envelope.Id instead of EnvelopeId
- Improved code structure for flexibility and service integration

EnvelopeGenerator.Application/Pdf/BurnPdfCommand.cs

@@ -11,13 +11,35 @@ using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using Newtonsoft.Json;
 using EnvelopeGenerator.Application.Common.Extensions;
+using EnvelopeGenerator.Application.Common.Query;
 
 namespace EnvelopeGenerator.Application.Pdf;
 
 /// <summary>
 /// 
 /// </summary>
-public record BurnPdfCommand(byte[] Document, List<string> InstantJSONList, int EnvelopeId) : IRequest<byte[]>;
+public record BurnPdfCommand : IRequest<byte[]?>
+{
+    /// <summary>
+    /// 
+    /// </summary>
+    public EnvelopeQueryBase? Envelope { get; set; }
+    
+    /// <summary>
+    /// 
+    /// </summary>
+    public byte[]? Document { get; set; }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public List<string>? InstantJSONList { get; set; }
+
+    /// <summary>
+    /// 
+    /// </summary>
+    public bool ByCronService { get; set; } = true;
+}
 
 /// <summary>
 /// 
@@ -59,7 +81,7 @@ public class BurnPdfCommandHandler : IRequestHandler<BurnPdfCommand, byte[]>
     {
         // read the elements of envelope with their annotations
         var elements = await _signRepo
-            .Where(sig => sig.Document.EnvelopeId == request.EnvelopeId)
+            .Where(sig => sig.Document.EnvelopeId == request.Envelope.Id)
             .Include(sig => sig.Annotations)
             .ToListAsync(cancel);