Read the context window from four more model lists

app/MindWork AI Studio/Provider/Mistral/Model.cs

@@ -1,3 +1,13 @@
+using System.Text.Json.Serialization;
+
 namespace AIStudio.Provider.Mistral;
 
-public readonly record struct Model(string Id, string Object, int Created, string OwnedBy);
+/// <summary>
+/// One model as Mistral lists it.
+/// </summary>
+/// <param name="Id">The model's ID.</param>
+/// <param name="Object">What kind of thing the entry is. Known value: "model".</param>
+/// <param name="Created">When the model was published, as seconds since the epoch.</param>
+/// <param name="OwnedBy">Who Mistral names as the owner of the model.</param>
+/// <param name="ContextWindowTokens">How much the model reads and writes in one conversation, in tokens.</param>
+public readonly record struct Model(string Id, string Object, int Created, string OwnedBy, [property: JsonPropertyName("max_context_length")] int? ContextWindowTokens);

app/MindWork AI Studio/Provider/Mistral/ProviderMistral.cs

@@ -1,6 +1,7 @@
 using System.Runtime.CompilerServices;
 
 using AIStudio.Chat;
+using AIStudio.Models.Live;
 using AIStudio.Provider.OpenAI;
 using AIStudio.Settings;
 
@@ -139,6 +140,8 @@ public sealed class ProviderMistral() : BaseProvider(LLMProviders.MISTRAL, new U
             storeType,
             "models",
             modelResponse => modelResponse.Data.Select(n => new Provider.Model(n.Id, null)),
-            apiKeyProvisional, token: token);
+            apiKeyProvisional,
+            listingFactory: modelResponse => modelResponse.Data.Select(n => ModelListing.For(n.Id, n.ContextWindowTokens)),
+            token: token);
     }
 }