Enhance query handling and diagnostics

Improved robustness and error handling in `BodyQueryBehavior`
and `HeaderQueryBehavior` by adding null checks, logging,
and introducing the `IsReturnedNoData` flag to track query
results. Updated `RecActionDto` to include the new flag for
better state management. Enhanced HTTP request construction
in `InvokeRecActionCommand` to handle `Body` and `Headers`
more reliably and log potential issues with unexecuted
behaviors. These changes improve resilience, traceability,
and diagnostics across the application.

src/ReC.Application/Common/Behaviors/BodyQueryBehavior.cs

@@ -9,7 +9,7 @@ public class BodyQueryBehavior<TRecAction>(IRecDbContext dbContext) : IPipelineB
     where TRecAction : RecActionDto
 {
     public async Task<Unit> Handle(TRecAction action, RequestHandlerDelegate<Unit> next, CancellationToken cancel)
-    {
+    {   
         if (action.BodyQuery is null)
             return await next(cancel);