feat: solution for 'Экзамен: RAG-агент с ChromaDB и веб-поиском'

src/search.js

@@ -0,0 +1,17 @@
+const fetch = require('node-fetch');
+
+async function webSearch(query) {
+  const url = `https://duckduckgo.com/html/?q=${encodeURIComponent(query)}`;
+  const response = await fetch(url);
+  const html = await response.text();
+  // Very naive parsing: extract titles from <a> tags
+  const titles = [];
+  const regex = /<a class="result__a"[^>]*>([^<]+)<\/a>/g;
+  let match;
+  while ((match = regex.exec(html)) !== null) {
+    titles.push(match[1]);
+  }
+  return titles.slice(0, 5);
+}
+
+module.exports = { webSearch };