feat: solution for 'Агент с RAG-памятью'

src/agent.js

@@ -0,0 +1,14 @@
+const { getChatCompletion } = require('./utils');
+const retriever = require('./retriever');
+
+async function ask(question) {
+  const passages = await retriever.getRelevantPassages(question, 3);
+  const context = passages.join('\n---\n');
+  const prompt = `You are an assistant. Use the following context to answer the question.\n\nContext:\n${context}\n\nQuestion: ${question}\nAnswer:`;
+  const answer = await getChatCompletion(prompt);
+  return answer;
+}
+
+module.exports = {
+  ask,
+};