Rename IsAutoGenerated_Core to IsAutoGeneratedNullable

Co-authored-by: adamsitnik <6011991+adamsitnik@users.noreply.github.com>
Agent-Logs-Url: https://github.com/microsoft/semantic-kernel/sessions/8395b048-8a87-4e27-a49f-2a85a7619436

Author: Copilot

dotnet/src/VectorData/VectorData.Abstractions/ProviderServices/CollectionModelBuilder.cs

@@ -159,7 +159,7 @@ protected virtual void ProcessTypeProperties(Type type, VectorStoreCollectionDef
             if (clrProperty.GetCustomAttribute<VectorStoreKeyAttribute>() is { } keyAttribute)
             {
                 var keyProperty = new KeyPropertyModel(clrProperty.Name, clrProperty.PropertyType);
-                keyProperty.IsAutoGenerated = keyAttribute.IsAutoGenerated_Core ?? this.SupportsKeyAutoGeneration(keyProperty.Type);
+                keyProperty.IsAutoGenerated = keyAttribute.IsAutoGeneratedNullable ?? this.SupportsKeyAutoGeneration(keyProperty.Type);
                 this.KeyProperties.Add(keyProperty);
                 storageName = keyAttribute.StorageName;
                 property = keyProperty;

dotnet/src/VectorData/VectorData.Abstractions/RecordAttributes/VectorStoreKeyAttribute.cs

@@ -27,16 +27,16 @@ public sealed class VectorStoreKeyAttribute : Attribute
     /// <remarks>
     /// The availability of auto-generated properties - as well as the .NET types supported for them - varies across provider implementations.
     /// This property is write-only by design so that it can be set at compile time as an attribute argument.
-    /// To read the value, use <see cref="IsAutoGenerated_Core" />.
+    /// To read the value, use <see cref="IsAutoGeneratedNullable" />.
     /// </remarks>
     public bool IsAutoGenerated
     {
-        get => throw new InvalidOperationException("IsAutoGenerated is write-only. Read IsAutoGenerated_Core instead.");
-        set => this.IsAutoGenerated_Core = value;
+        get => throw new InvalidOperationException("IsAutoGenerated is write-only. Read IsAutoGeneratedNullable instead.");
+        set => this.IsAutoGeneratedNullable = value;
     }
 
     /// <summary>
     /// Gets whether this key property's value is auto-generated or not, or <see langword="null" /> if not set.
     /// </summary>
-    internal bool? IsAutoGenerated_Core { get; private set; }
+    internal bool? IsAutoGeneratedNullable { get; private set; }
 }