Refactor to support batch action invocation

Replaced `InvokeRecAction` with `InvokeBatchRecAction` in `ActionController` to transition from single-action to batch-action invocation.

Removed `InvokeRecActionCommand.cs`, which previously handled individual action invocations. Introduced `InvokeBatchRecActionsCommand.cs` to handle batch processing with similar concurrency control logic using a semaphore.

This redesign improves scalability and aligns with updated business requirements while maintaining compatibility with the existing application structure.

src/ReC.API/Controllers/ActionController.cs

@@ -11,7 +11,7 @@ public class ActionController(IMediator mediator) : ControllerBase
     [HttpPost("{profileId}")]
     public async Task<IActionResult> Invoke([FromRoute] int profileId)
     {
-        await mediator.InvokeRecAction(profileId);
+        await mediator.InvokeBatchRecAction(profileId);
         return Accepted();
     }
 }