Refactor SQL handling in EnvelopeGenerator application

- Added `System.Data` using directive in `EnvelopeCreateReadSQL.cs`.
- Updated SQL command strings to use parameter placeholders.
- Corrected method name from `CreateParmas` to `CreateParams` and added output parameter `@OutUid`.
- Made similar updates in `EnvelopeReceiverAddReadSQL.cs`.
- Introduced `ParamsExtensions` class with `ToSqlParam` method for converting .NET objects to SQL-safe parameter strings.

EnvelopeGenerator.Application/SQL/EnvelopeCreateReadSQL.cs

@@ -1,6 +1,7 @@
 using Dapper;
 using EnvelopeGenerator.Application.Contracts.SQLExecutor;
 using EnvelopeGenerator.Domain.Entities;
+using System.Data;
 
 namespace EnvelopeGenerator.Application.SQL;
 
@@ -10,18 +11,17 @@ namespace EnvelopeGenerator.Application.SQL;
 public class EnvelopeCreateReadSQL : ISQL<Envelope>
 {
     /// <summary>
-    /// 
+    /// USER_ID, TITLE, TFAEnabled, MESSAGE
     /// </summary>
     public string Raw => @"
-        USE [DD_ECM];
         DECLARE @OUT_UID varchar(36);
 
         EXEC [dbo].[PRSIG_API_CREATE_ENVELOPE]
-            @USER_ID = @UserId,
-            @TITLE = @Title,
-            @TFAEnabled = @TfaEnabled,
-            @MESSAGE = @Message,
-            @OUT_UID = @OUT_UID OUTPUT;
+            {0},
+            {1},
+            {2},
+            {3},
+            @OUT_UID OUTPUT;
 
         SELECT TOP(1) *
         FROM [dbo].[TBSIG_ENVELOPE]
@@ -36,13 +36,14 @@ public class EnvelopeCreateReadSQL : ISQL<Envelope>
     /// <param name="message"></param>
     /// <param name="tfaEnabled"></param>
     /// <returns></returns>
-    public static DynamicParameters CreateParmas(int userId, string title = "", string message = "", bool tfaEnabled = false)
+    public static DynamicParameters CreateParams(int userId, string title = "", string message = "", bool tfaEnabled = false)
     {
         var parameters = new DynamicParameters();
         parameters.Add("@UserId", userId);
         parameters.Add("@Title", title);
         parameters.Add("@TfaEnabled", tfaEnabled ? 1 : 0);
         parameters.Add("@Message", message);
+        parameters.Add("@OutUid", dbType: DbType.String, size: 36, direction: ParameterDirection.Output);
         return parameters;
     }
 }