Add ReadProfileViewQueryValidator for Id validation

Introduced ReadProfileViewQueryValidator using FluentValidation to ensure the Id property, if provided, is greater than 0. Includes a custom error message for invalid Id values.

src/ReC.Application/Common/Validations/ReadProfileViewQueryValidator.cs

@@ -0,0 +1,15 @@
+using FluentValidation;
+using ReC.Application.Profile.Queries;
+
+namespace ReC.Application.Common.Validations;
+
+public class ReadProfileViewQueryValidator : AbstractValidator<ReadProfileViewQuery>
+{
+    public ReadProfileViewQueryValidator()
+    {
+        RuleFor(x => x.Id)
+            .GreaterThan(0)
+            .When(x => x.Id.HasValue)
+            .WithMessage("Id must be greater than 0.");
+    }
+}