Make ValidatePropertyAttributesAsync and ValidateComplexObjectsAsync internal and remove from PublicApi

Co-authored-by: captainsafia <[email protected]>

Author: Copilot

src/Validation/src/PublicAPI.Unshipped.txt

@@ -48,6 +48,4 @@ abstract Microsoft.Extensions.Validation.ValidatablePropertyInfo.GetValidationAt
 static Microsoft.Extensions.DependencyInjection.ValidationServiceCollectionExtensions.AddValidation(this Microsoft.Extensions.DependencyInjection.IServiceCollection! services, System.Action<Microsoft.Extensions.Validation.ValidationOptions!>? configureOptions = null) -> Microsoft.Extensions.DependencyInjection.IServiceCollection!
 virtual Microsoft.Extensions.Validation.ValidatableParameterInfo.ValidateAsync(object? value, Microsoft.Extensions.Validation.ValidateContext! context, System.Threading.CancellationToken cancellationToken) -> System.Threading.Tasks.Task!
 virtual Microsoft.Extensions.Validation.ValidatablePropertyInfo.ValidateAsync(object? value, Microsoft.Extensions.Validation.ValidateContext! context, System.Threading.CancellationToken cancellationToken) -> System.Threading.Tasks.Task!
-virtual Microsoft.Extensions.Validation.ValidatablePropertyInfo.ValidateComplexObjectsAsync(object? value, Microsoft.Extensions.Validation.ValidateContext! context, System.Threading.CancellationToken cancellationToken) -> System.Threading.Tasks.Task!
-virtual Microsoft.Extensions.Validation.ValidatablePropertyInfo.ValidatePropertyAttributesAsync(object? value, Microsoft.Extensions.Validation.ValidateContext! context, System.Threading.CancellationToken cancellationToken) -> System.Threading.Tasks.Task<bool>!
 virtual Microsoft.Extensions.Validation.ValidatableTypeInfo.ValidateAsync(object? value, Microsoft.Extensions.Validation.ValidateContext! context, System.Threading.CancellationToken cancellationToken) -> System.Threading.Tasks.Task!

src/Validation/src/ValidatablePropertyInfo.cs

@@ -68,7 +68,7 @@ public virtual async Task ValidateAsync(object? value, ValidateContext context,
     /// Validates only the property attributes (Required, Range, etc.) without validating complex objects.
     /// Returns true if there were validation errors.
     /// </summary>
-    public virtual Task<bool> ValidatePropertyAttributesAsync(object? value, ValidateContext context, CancellationToken cancellationToken)
+    internal virtual Task<bool> ValidatePropertyAttributesAsync(object? value, ValidateContext context, CancellationToken cancellationToken)
     {
         var property = DeclaringType.GetProperty(Name) ?? throw new InvalidOperationException($"Property '{Name}' not found on type '{DeclaringType.Name}'.");
         var propertyValue = property.GetValue(value);
@@ -124,7 +124,7 @@ public virtual Task<bool> ValidatePropertyAttributesAsync(object? value, Validat
     /// <summary>
     /// Validates complex objects (sub-types) for this property.
     /// </summary>
-    public virtual async Task ValidateComplexObjectsAsync(object? value, ValidateContext context, CancellationToken cancellationToken)
+    internal virtual async Task ValidateComplexObjectsAsync(object? value, ValidateContext context, CancellationToken cancellationToken)
     {
         var property = DeclaringType.GetProperty(Name) ?? throw new InvalidOperationException($"Property '{Name}' not found on type '{DeclaringType.Name}'.");
         var propertyValue = property.GetValue(value);