Port the Alibaba Cloud families and refuse ambiguous rule inheritance

app/MindWork AI Studio/Models/Alibaba/ModelStudioQwqFamily.cs

@@ -0,0 +1,34 @@
+using AIStudio.Provider;
+
+using static AIStudio.Provider.Capability;
+
+namespace AIStudio.Models.Alibaba;
+
+/// <summary>
+/// QwQ as Model Studio serves it, which is qwq-plus.
+/// </summary>
+/// <remarks>
+/// This is the contradiction the provider-bound rules were built for. What Model Studio sells under
+/// this name is a commercial thinking-only model built on Qwen 2.5; QwQ-32B, which everybody else
+/// serves, is the open-weight model. They share a family name and nothing else, and the old rules
+/// could only keep them apart by living in two different functions.
+///
+/// Neither of them appears in Alibaba's list of models which call functions, and the model card of
+/// the open weights does not mention tools at all, which is why no such ability is stated here.
+/// Anybody who knows better turns it on in the expert settings.
+/// </remarks>
+public sealed class ModelStudioQwqFamily : ModelFamily
+{
+    /// <inheritdoc />
+    public override ModelVendor Vendor => ModelVendor.ALIBABA;
+
+    /// <inheritdoc />
+    public override ModelSource Source => new("https://www.alibabacloud.com/help/en/model-studio/models", new DateOnly(2026, 9, 11), "Ported unchanged from the rules in ProviderExtensions.Alibaba.cs: text in, text out, thinking which cannot be switched off, and no tools.");
+
+    /// <inheritdoc />
+    protected override void Declare(ModelFamilyBuilder builder) =>
+        builder.Rule("qwq").AsSegment().OnlyOn(LLMProviders.ALIBABA_CLOUD)
+            .Capabilities(TEXT_INPUT | TEXT_OUTPUT)
+            .Apis(CHAT_COMPLETION_API)
+            .Reasoning(ReasoningSupport.ALWAYS);
+}