Add history creation functionality to EnvelopeReceiverController

Updated the `EnvelopeReceiverController` to include a new region for creating history. Added a SQL command to insert a history state into the database, established a database connection, and executed the command within a `using` block. The result is read to check for success, and the method now returns an `Ok` response with the result.

EnvelopeGenerator.GeneratorAPI/Controllers/EnvelopeReceiverController.cs

@@ -239,6 +239,8 @@ public class EnvelopeReceiverController : ControllerBase
 
             #region Add document element
             string sql = @"
+                USE [DD_ECM]
+
                 DECLARE @OUT_SUCCESS bit;
 
                 EXEC [dbo].[PRSIG_API_ADD_DOC_RECEIVER_ELEM]
@@ -276,6 +278,45 @@ public class EnvelopeReceiverController : ControllerBase
                 }
             #endregion
 
+            #region Create history
+            string connectionString = "Server=YOUR_SERVER;Database=YOUR_DATABASE;Trusted_Connection=True;";
+
+            string sql_hist = @"
+                USE [DD_ECM]
+
+                DECLARE @OUT_SUCCESS bit;
+
+                EXEC [dbo].[PRSIG_API_ADD_HISTORY_STATE]
+                    @ENV_UID = @ENV_UID,
+                    @STATUS_ID = @STATUS_ID,
+                    @USER_ID = @USER_ID,
+                    @OUT_SUCCESS = @OUT_SUCCESS OUTPUT;
+
+                SELECT @OUT_SUCCESS as [@OUT_SUCCESS];";
+
+            using (SqlConnection conn = new(connectionString))
+            {
+                conn.Open();
+
+                using (SqlCommand cmd = new SqlCommand(sql_hist, conn))
+                {
+                    cmd.CommandType = CommandType.Text;
+
+                    cmd.Parameters.AddWithValue("@ENV_UID", envelope.Uuid);
+                    cmd.Parameters.AddWithValue("@STATUS_ID", 1003);
+                    cmd.Parameters.AddWithValue("@USER_ID", userId);
+
+                    using (SqlDataReader reader = cmd.ExecuteReader())
+                    {
+                        if (reader.Read())
+                        {
+                            bool outSuccess = reader.GetBoolean(0);
+                        }
+                    }
+                }
+            }
+            #endregion
+
             return Ok(res);
         }
         catch (Exception ex)