update pi

pi/files/agent/extensions/pi-web-access/pdf-extract.ts

@@ -42,9 +42,10 @@ export async function extractPDFToMarkdown(
 
   const pdf = await getDocumentProxy(new Uint8Array(buffer));
   const metadata = await pdf.getMetadata();
+  const info = (metadata.info ?? {}) as Record<string, unknown>;
   
   // Extract title from metadata or URL
-  const metaTitle = metadata.info?.Title as string | undefined;
+  const metaTitle = typeof info.Title === "string" ? info.Title : undefined;
   const urlTitle = extractTitleFromURL(url);
   const title = metaTitle?.trim() || urlTitle;
 
@@ -79,8 +80,9 @@ export async function extractPDFToMarkdown(
   lines.push("");
   lines.push(`> Source: ${url}`);
   lines.push(`> Pages: ${pdf.numPages}${truncated ? ` (extracted first ${pagesToExtract})` : ""}`);
-  if (metadata.info?.Author) {
-    lines.push(`> Author: ${metadata.info.Author}`);
+  const author = typeof info.Author === "string" ? info.Author : undefined;
+  if (author) {
+    lines.push(`> Author: ${author}`);
   }
   lines.push("");
   lines.push("---");