feat(infrastructure): implement ISQLExecutor with EF6/EF Core support

- Move ISQLExecutor interface from Application to Domain layer
  - Follow Clean Architecture: Infrastructure references Domain, not Application
  - Namespace: ECMJobRunner.Domain.Interfaces
- Implement SQLExecutor service with conditional compilation
  - EF6 (net480): Database.SqlQuery<T>()
  - EF Core (net8.0): Database.SqlQueryRaw<T>()
- Register ISQLExecutor in DI (AddInfrastructure, AddInfrastructureInMemory)
  - Scoped lifetime (aligns with DbContext)

ECMJobRunner.Infrastructure/DependencyExtension.cs

@@ -8,6 +8,7 @@ using Microsoft.Extensions.DependencyInjection;
 using ECMJobRunner.Domain.Interfaces;
 using ECMJobRunner.Infrastructure.Data;
 using ECMJobRunner.Infrastructure.Repositories;
+using ECMJobRunner.Infrastructure.Services;
 
 namespace ECMJobRunner.Infrastructure
 {
@@ -43,6 +44,9 @@ namespace ECMJobRunner.Infrastructure
             services.AddScoped<IProfileSqlJobRepository, ProfileSqlJobRepository>();
             services.AddScoped<IProfileHistoryRepository, ProfileHistoryRepository>();
 
+            // Register SQL executor as scoped
+            services.AddScoped<ISQLExecutor, SQLExecutor>();
+
             return services;
         }
 
@@ -70,6 +74,9 @@ namespace ECMJobRunner.Infrastructure
             services.AddScoped<IProfileSqlJobRepository, ProfileSqlJobRepository>();
             services.AddScoped<IProfileHistoryRepository, ProfileHistoryRepository>();
 
+            // Register SQL executor as scoped
+            services.AddScoped<ISQLExecutor, SQLExecutor>();
+
             return services;
         }
 #else
@@ -96,6 +103,9 @@ namespace ECMJobRunner.Infrastructure
             services.AddScoped<IProfileSqlJobRepository, ProfileSqlJobRepository>();
             services.AddScoped<IProfileHistoryRepository, ProfileHistoryRepository>();
 
+            // Register SQL executor as scoped
+            services.AddScoped<ISQLExecutor, SQLExecutor>();
+
             return services;
         }
 #endif