feat: AK optional

packages/llms/src/index.ts

@@ -8,17 +8,17 @@ export type { InvokeOptions, InvokeResult, LLMClient, LLMConfig, Message, Tool }
 
 export function parseLLMConfig(config: LLMConfig): Required<LLMConfig> {
 	// Runtime validation as defensive programming (types already guarantee these)
-	if (!config.baseURL || !config.apiKey || !config.model) {
+	if (!config.baseURL || !config.model) {
 		throw new Error(
-			'[PageAgent] LLM configuration required. Please provide: baseURL, apiKey, model. ' +
+			'[PageAgent] LLM configuration required. Please provide: baseURL, model. ' +
 				'See: https://alibaba.github.io/page-agent/docs/features/models'
 		)
 	}
 
 	return {
 		baseURL: config.baseURL,
-		apiKey: config.apiKey,
 		model: config.model,
+		apiKey: config.apiKey || '',
 		temperature: config.temperature ?? DEFAULT_TEMPERATURE,
 		maxRetries: config.maxRetries ?? LLM_MAX_RETRIES,
 		customFetch: (config.customFetch ?? fetch).bind(globalThis), // fetch will be illegal unless bound