refactor(EnvelopeDocument): rename as Document

EnvelopeGenerator.Application/Interfaces/SQLExecutor/IDocumentExecutor.cs

@@ -14,5 +14,5 @@ public interface IDocumentExecutor
     /// <param name="envelope_uuid"></param>
     /// <param name="cancellation"></param>
     /// <returns></returns>
-    Task<EnvelopeDocument> CreateDocumentAsync(string base64, string envelope_uuid, CancellationToken cancellation = default);
+    Task<Document> CreateDocumentAsync(string base64, string envelope_uuid, CancellationToken cancellation = default);
 }