Update requirements.txt

requirements.txt

@@ -1 +1,20 @@
-huggingface_hub==0.25.2
+# Core
+transformers>=4.42.0
+accelerate>=0.32.0
+torch>=2.2.0
+
+# App
+gradio>=4.38.0
+
+# LangChain & friends
+langchain>=0.2.3
+langchain-community>=0.2.4
+langchain-text-splitters>=0.2.2
+faiss-cpu>=1.8.0
+sentence-transformers>=3.0.0
+
+# PDF & utils
+pypdf>=4.2.0
+pymupdf>=1.24.4
+tqdm>=4.66.0
+python-dotenv>=1.0.1