Refactor SQL execution classes into new namespace

Restructure and refactor classes related to SQL execution within the `EnvelopeGenerator.Infrastructure` namespace. Key changes include:
- Added `EnvelopeGenerator.Infrastructure.Executor` namespace.
- Moved and redefined `Query`, `QueryExtension`, `SQLExecutor`, `SQLExecutorBaseEntity`, and `SQLExecutorParams` classes to the new namespace.
- Maintained existing functionality while improving code organization and clarity.

EnvelopeGenerator.Infrastructure/DependencyExtensions.cs

@@ -8,6 +8,7 @@ using EnvelopeGenerator.Domain.Entities;
 using DigitalData.Core.Infrastructure.AutoMapper;
 using EnvelopeGenerator.Application.Contracts.SQLExecutor;
 using Microsoft.Extensions.Configuration;
+using EnvelopeGenerator.Infrastructure.Executor;
 
 namespace EnvelopeGenerator.Infrastructure;
 

EnvelopeGenerator.Infrastructure/Executor/Query.cs

@@ -1,8 +1,7 @@
-using AngleSharp.Dom;
-using EnvelopeGenerator.Application.Contracts.SQLExecutor;
+using EnvelopeGenerator.Application.Contracts.SQLExecutor;
 using Microsoft.EntityFrameworkCore;
 
-namespace EnvelopeGenerator.Infrastructure;
+namespace EnvelopeGenerator.Infrastructure.Executor;
 
 public sealed record Query<TEntity> : IQuery<TEntity>
 {

EnvelopeGenerator.Infrastructure/Executor/QueryExtension.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Infrastructure;
+namespace EnvelopeGenerator.Infrastructure.Executor;
 
 public static class QueryExtension
 {

EnvelopeGenerator.Infrastructure/Executor/SQLExecutor.cs

@@ -4,7 +4,7 @@ using Microsoft.Data.SqlClient;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Options;
 
-namespace EnvelopeGenerator.Infrastructure;
+namespace EnvelopeGenerator.Infrastructure.Executor;
 
 public class SQLExecutor : ISQLExecutor
 {

EnvelopeGenerator.Infrastructure/Executor/SQLExecutorBaseEntity.cs

@@ -3,7 +3,7 @@ using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Options;
 
-namespace EnvelopeGenerator.Infrastructure;
+namespace EnvelopeGenerator.Infrastructure.Executor;
 
 public sealed class SQLExecutor<T> : SQLExecutor, ISQLExecutor<T> where T : class
 {

EnvelopeGenerator.Infrastructure/Executor/SQLExecutorParams.cs

@@ -1,4 +1,4 @@
-namespace EnvelopeGenerator.Infrastructure;
+namespace EnvelopeGenerator.Infrastructure.Executor;
 
 public class SQLExecutorParams
 {