fix(core): improve SmartPdf lifecycle management and update dependencies

ts/provider.xai.ts

@@ -11,7 +11,6 @@ export interface IXAIProviderOptions {
 export class XAIProvider extends MultiModalModel {
   private options: IXAIProviderOptions;
   public openAiApiClient: plugins.openai.default;
-  public smartpdfInstance: plugins.smartpdf.SmartPdf;
 
   constructor(optionsArg: IXAIProviderOptions) {
     super();
@@ -19,14 +18,16 @@ export class XAIProvider extends MultiModalModel {
   }
 
   public async start() {
+    await super.start();
     this.openAiApiClient = new plugins.openai.default({
       apiKey: this.options.xaiToken,
       baseURL: 'https://api.x.ai/v1',
     });
-    this.smartpdfInstance = new plugins.smartpdf.SmartPdf();
   }
 
-  public async stop() {}
+  public async stop() {
+    await super.stop();
+  }
 
   public async chatStream(input: ReadableStream<Uint8Array>): Promise<ReadableStream<string>> {
     // Create a TextDecoder to handle incoming chunks