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

app/MindWork AI Studio/Provider/Google/ProviderGoogle.cs

@@ -34,7 +34,7 @@ public class ProviderGoogle() : BaseProvider(LLMProviders.GOOGLE, new Uri("https
                            async (systemPrompt, apiParameters, tools) =>
                            {
                                // Build the list of messages:
-                               var messages = await chatThread.Blocks.BuildMessagesUsingNestedImageUrlAsync(this.Provider, chatModel);
+                               var messages = await chatThread.Blocks.BuildMessagesUsingNestedImageUrlAsync(this.CreateSettingsProvider(chatModel));
 
                                return new ChatCompletionAPIRequest
                                {
@@ -116,7 +116,7 @@ public class ProviderGoogle() : BaseProvider(LLMProviders.GOOGLE, new Uri("https
             if (!response.IsSuccessStatusCode)
             {
                 LOGGER.LogError("Embedding request failed with status code {ResponseStatusCode} and body: '{ResponseBody}'.", response.StatusCode, responseBody);
-                throw this.CreateEmbeddingRequestException(response.StatusCode, response.ReasonPhrase ?? string.Empty, responseBody);
+                throw this.CreateEmbeddingRequestException(response.StatusCode, response.ReasonPhrase ?? string.Empty, responseBody, embeddingModel);
             }
 
             var embeddingResponse = JsonSerializer.Deserialize<GoogleEmbeddingResponse>(responseBody, JSON_SERIALIZER_OPTIONS);
@@ -168,9 +168,15 @@ public class ProviderGoogle() : BaseProvider(LLMProviders.GOOGLE, new Uri("https
         {
             Models =
             [
+                //
+                // Asking what a model is made for, rather than only ruling out the embedding ones.
+                // Google names everything after the chat model it grew out of, so the catalog is
+                // full of names which look like something to talk to and are not: the image models,
+                // and the computer use model whose API refuses a request without its tool.
+                //
                 ..result.Models.Where(model =>
                         model.Id.StartsWith("gemini-", StringComparison.OrdinalIgnoreCase) &&
-                        !this.IsEmbeddingModel(model.Id))
+                        model.IsChatModel(this.Provider))
                     .Select(this.WithDisplayNameFallback)
             ]
         };
@@ -189,7 +195,7 @@ public class ProviderGoogle() : BaseProvider(LLMProviders.GOOGLE, new Uri("https
         {
             Models =
             [
-                ..result.Models.Where(model => this.IsEmbeddingModel(model.Id))
+                ..result.Models.Where(model => model.IsEmbeddingModel(this.Provider))
                     .Select(this.WithDisplayNameFallback)
             ]
         };
@@ -222,12 +228,6 @@ public class ProviderGoogle() : BaseProvider(LLMProviders.GOOGLE, new Uri("https
             token: token);
     }
 
-    private bool IsEmbeddingModel(string modelId)
-    {
-        return modelId.Contains("embedding", StringComparison.OrdinalIgnoreCase) ||
-               modelId.Contains("embed", StringComparison.OrdinalIgnoreCase);
-    }
-
     private Model WithDisplayNameFallback(Model model)
     {
         return string.IsNullOrWhiteSpace(model.DisplayName)