feat: upgrade AI prompts to v2 specification with grounding and injection shield

test_udf.js

@@ -0,0 +1,19 @@
+const AdmZip = require("adm-zip");
+function parseUDF(buffer) {
+  try {
+    const zip = new AdmZip(buffer);
+    const zipEntries = zip.getEntries();
+    const contentEntry = zipEntries.find((entry) => entry.entryName === "content.xml" || entry.entryName.endsWith(".xml"));
+    if (!contentEntry) {
+      throw new Error("No XML content found inside UDF/ZIP");
+    }
+    const xmlData = zip.readAsText(contentEntry);
+    // Remove XML tags and replace with space, then replace multiple spaces with single space
+    const plainText = xmlData.replace(/<[^>]+>/g, " ").replace(/\s+/g, " ").trim();
+    return plainText;
+  } catch (err) {
+    console.error("UDF parse error:", err);
+    return "";
+  }
+}
+console.log("ok");