Rebuilt how AI Studio knows what a model can do (#960)

app/MindWork AI Studio/Models/Nomic/NomicEmbedFamily.cs

@@ -0,0 +1,29 @@
+using AIStudio.Provider;
+
+using static AIStudio.Provider.Capability;
+
+namespace AIStudio.Models.Nomic;
+
+/// <summary>
+/// The Nomic embedding models, which everybody runs locally and nobody chats with.
+/// </summary>
+/// <remarks>
+/// One of the most widely served models there is: it is what a local setup reaches for when it
+/// needs vectors. The previous rules had no idea it existed, so it fell into the assumption that an
+/// unknown model chats and calls functions -- three statements about a model which does none of
+/// them, and the one thing it does was not said at all.
+/// </remarks>
+public sealed class NomicEmbedFamily : ModelFamily
+{
+    /// <inheritdoc />
+    public override ModelVendor Vendor => ModelVendor.NOMIC_AI;
+
+    /// <inheritdoc />
+    public override ModelSource Source => new("https://huggingface.co/nomic-ai", new DateOnly(2026, 9, 11), "The app lists these under IProvider.GetEmbeddingModels, which is where the statement that they embed comes from.");
+
+    /// <inheritdoc />
+    protected override void Declare(ModelFamilyBuilder builder) =>
+        builder.Rule("nomic-embed").AsSubstring()
+            .Capabilities(TEXT_INPUT | EMBEDDING)
+            .Kind(ModelKind.EMBEDDING);
+}