Move the model kinds into the rule engine

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

@@ -0,0 +1,38 @@
+using AIStudio.Provider;
+
+namespace AIStudio.Models.Kinds;
+
+/// <summary>
+/// The models which speak.
+/// </summary>
+/// <remarks>
+/// Besides the pure text-to-speech models this covers the ones which answer in audio, such as
+/// gpt-audio and gpt-4o-audio-preview. Those do accept a text-only request, but they are made for
+/// spoken conversations, and the providers offering them keep them out of their chat model lists as
+/// well.
+///
+/// All three words are stated as name parts. The markers they replace carried a hyphen on one side
+/// to say the same thing, which caught one name these do not: Coqui's XTTS glues the word to an x.
+/// It is named outright rather than loosening all three into substrings, where "tts" would be three
+/// characters claiming every name that happens to contain them.
+/// </remarks>
+public sealed class SpeechSynthesisModelsFamily : ModelFamily
+{
+    /// <inheritdoc />
+    public override ModelVendor Vendor => ModelVendor.UNKNOWN;
+
+    /// <inheritdoc />
+    public override ModelSource Source => new("https://huggingface.co/models?pipeline_tag=text-to-speech", new DateOnly(2026, 9, 12), "Ported from the speech synthesis markers of Provider/ModelKindExtensions.cs, where each of the three was written twice to allow for a separator on either side.");
+
+    /// <inheritdoc />
+    protected override void Declare(ModelFamilyBuilder builder)
+    {
+        builder.Modifier("tts").AsSegment().Kind(ModelKind.SPEECH_SYNTHESIS);
+
+        builder.Modifier("xtts").AsSegment().Inherits();
+
+        builder.Modifier("speech").AsSegment().Inherits();
+
+        builder.Modifier("audio").AsSegment().Inherits();
+    }
+}