save anthropic key if supplied

Author: jmcphers

extensions/positron-assistant/src/config.ts

@@ -272,8 +272,10 @@ async function saveModel(userConfig: positron.ai.LanguageModelConfig, sources: p
 	const id = randomUUID();
 
 	// Check if this provider uses autoconfiguration (should not be saved to persistent state)
+	// Some models such as Anthropic can use either autoconfiguration or manual configuration;
+	// if an apiKey is provided, treat it as manual configuration
 	const providerSource = sources.find(source => source.provider.id === userConfig.provider);
-	const isAutoconfigured = providerSource?.defaults.autoconfigure !== undefined;
+	const isAutoconfigured = !apiKey && providerSource?.defaults.autoconfigure !== undefined;
 
 	// Filter out sources that use autoconfiguration for required field validation
 	sources = sources.filter(source => source.defaults.autoconfigure === undefined);