Update app.py

app.py

@@ -91,8 +91,8 @@ class SimpleRetriever(BaseRetriever):
 
         ranked_docs = sorted(zip(similarities, self.documents), reverse=True)
         return [doc for _, doc in ranked_docs[:5]]
-self.documents, self.embeddings = build_pdf_index()
-retriever = SimpleRetriever(documents=self.documents, embeddings=self.embeddings)
+documents, embeddings = build_pdf_index()
+retriever = SimpleRetriever(documents=documents, embeddings=embeddings)
 
 # بعد chain را بساز
 chain = RetrievalQA.from_chain_type(