Add EndpointAuthId to support endpoint authentication

Introduced a new `EndpointAuthId` property in `RecActionController` and `CreateRecActionCommand` to enable handling of endpoint authentication. Updated the `RecActionController` to initialize `EndpointAuthId` with a default value of `1`. Modified the `CreateRecActionCommand` record to include a nullable `EndpointAuthId` property of type `long?`, allowing optional specification of authentication details.

src/ReC.API/Controllers/RecActionController.cs

@@ -54,7 +54,8 @@ public class RecActionController(IMediator mediator) : ControllerBase
             Type = type,
             BodyQuery = $@"SELECT '{bodyJson ?? "NULL"}' AS REQUEST_BODY;",
             HeaderQuery = headerJson is not null ? $@"SELECT '{headerJson}' AS REQUEST_HEADER;" : null,
-            Active = true
+            Active = true,
+            EndpointAuthId = 1
         }, cancel);
 
         return CreatedAtAction(nameof(CreateFakeAction), null);