Structured per-provider config block, non-destructive provider switching (#8977)

Signed-off-by: Douwe Osinga <douwe@squareup.com>
Signed-off-by: Aaron Yourk <ayourk@gmail.com>
Co-authored-by: Douwe Osinga <douwe@squareup.com>

ui/desktop/src/api/types.gen.ts

@@ -953,6 +953,7 @@ export type ProviderDetails = {
     metadata: ProviderMetadata;
     name: string;
     provider_type: ProviderType;
+    saved_model?: string | null;
 };
 
 export type ProviderEngine = 'openai' | 'ollama' | 'anthropic';

ui/desktop/src/components/settings/models/subcomponents/SwitchModelModal.tsx

@@ -594,6 +594,13 @@ export const SwitchModelModal = ({
     // Don't auto-select if user explicitly cleared the model
     if (!provider || loadingModels || model || isCustomModel || userClearedModel) return;
 
+    // Use saved model from provider config if available
+    const providerInfo = activeProvidersList.find((p) => p.name === provider);
+    if (providerInfo?.saved_model) {
+      setModel(providerInfo.saved_model);
+      return;
+    }
+
     const providerModels = modelOptions
       .filter((group) => group.options[0]?.provider === provider)
       .flatMap((group) => group.options);
@@ -604,7 +611,7 @@ export const SwitchModelModal = ({
         setModel(preferredModel);
       }
     }
-  }, [provider, modelOptions, loadingModels, model, isCustomModel, userClearedModel]);
+  }, [provider, modelOptions, loadingModels, model, isCustomModel, userClearedModel, activeProvidersList]);
 
   // Handle model selection change
   const handleModelChange = (newValue: unknown) => {