Refactor envelope creation methods and parameter handling

- Updated `Extension.cs` to remove old methods and introduce a new parameter creation method.
- Modified `IEnvelopeExecutor.cs` to change `CreateEnvelopeAsync` signature for clarity.
- Added a consistent `CreateParmas` method in `EnvelopeCreateReadSQL.cs`.
- Changed service registration in `DependencyExtensions.cs` from singleton to scoped.
- Revised `CreateEnvelopeAsync` in `EnvelopeExecutor.cs` to utilize the new parameter structure and removed user addition logic.

These changes enhance code clarity, maintainability, and consistency in parameter handling.

EnvelopeGenerator.Application/Contracts/SQLExecutor/IEnvelopeExecutor.cs

@@ -11,9 +11,11 @@ public interface IEnvelopeExecutor : ISQLExecutor
     /// <summary>
     /// 
     /// </summary>
-    /// <param name="parameters"></param>
-    /// <param name="addUser"></param>
+    /// <param name="userId"></param>
+    /// <param name="title"></param>
+    /// <param name="message"></param>
+    /// <param name="tfaEnabled"></param>
     /// <param name="cancellation"></param>
     /// <returns></returns>
-    Task<Envelope?> CreateEnvelopeAsync(DynamicParameters parameters, bool addUser = true, CancellationToken cancellation = default);
+    Task<Envelope?> CreateEnvelopeAsync(int userId, string title = "", string message = "", bool tfaEnabled = false, CancellationToken cancellation = default);
 }