Move the model kinds into the rule engine

app/MindWork AI Studio/Models/Kinds/ModerationModelsFamily.cs

@@ -0,0 +1,32 @@
+using AIStudio.Provider;
+
+namespace AIStudio.Models.Kinds;
+
+/// <summary>
+/// The models which judge content instead of writing it.
+/// </summary>
+/// <remarks>
+/// The guard models are the reason this is stated as a plain substring rather than as a name part:
+/// Meta writes Llama-Guard-3-8B, where the word stands on its own, but Alibaba writes Qwen3Guard-Gen-8B,
+/// where it is glued to the version. A name part would see the first and miss the second.
+///
+/// Being a modifier is what makes that harmless. Llama-Guard keeps everything the Llama rules say
+/// about it and is merely not offered as something to chat with -- which is also why this does not
+/// collide with the family it belongs to, although both are substrings of the same length.
+/// </remarks>
+public sealed class ModerationModelsFamily : ModelFamily
+{
+    /// <inheritdoc />
+    public override ModelVendor Vendor => ModelVendor.UNKNOWN;
+
+    /// <inheritdoc />
+    public override ModelSource Source => new("https://platform.openai.com/docs/guides/moderation", new DateOnly(2026, 9, 12), "Ported unchanged from the moderation markers of Provider/ModelKindExtensions.cs.");
+
+    /// <inheritdoc />
+    protected override void Declare(ModelFamilyBuilder builder)
+    {
+        builder.Modifier("moderation").AsSubstring().Kind(ModelKind.MODERATION);
+
+        builder.Modifier("guard").AsSubstring().Inherits();
+    }
+}