Update requirements.txt

requirements.txt

@@ -1,22 +1,21 @@
-# Core app
+# --- Core App Framework ---
 streamlit>=1.38.0
 python-dotenv>=1.0.1
 
-# PDF parsing
+# --- PDF Parsing ---
 PyPDF2>=3.0.1
 
-# Numerical + machine learning
+# --- Numerical & Machine Learning ---
 numpy>=1.26.4
 scikit-learn>=1.5.2
 
-# Local embeddings (fast & offline)
+# --- Local Embeddings / Hugging Face Integration ---
 sentence-transformers>=3.0.1
+huggingface-hub>=0.25.0
+requests>=2.32.3
 
-# Vector search
+# --- Vector Search (Fast Indexing) ---
 faiss-cpu>=1.8.0
 
-# Hugging Face client (optional cloud inference)
-huggingface-hub>=0.25.0
-
-# Streamlit chat UI helpers
+# --- Chat Interface ---
 streamlit-chat>=0.1.1