Update src/streamlit_app.py

src/streamlit_app.py

@@ -188,8 +188,9 @@ else:
 
     if temp_path:
         with st.spinner("🔍 Processing document..."):
-            text, toc = extract_text_from_pdf(temp_path)
+            text, toc, toc_source = extract_text_from_pdf(temp_path)
             chunks = chunk_text(text, chunk_size=chunk_size, overlap=overlap)
+            st.caption(f"📘 TOC Source: {toc_source}")
         with st.spinner("⚙️ Building search index..."):
             embeddings = cache_embeddings(os.path.basename(temp_path), chunks, embed_chunks)
             index = build_faiss_index(embeddings)