Add all required dependencies for backend

requirements.txt

@@ -3,7 +3,7 @@ uvicorn==0.29.0
 python-dotenv==1.0.1
 langchain==0.1.16
 langchain-community==0.0.32
-langchain-groq==0.3.0
+langchain-groq==0.0.1
 sentence-transformers==2.2.2
 faiss-cpu==1.7.4
 tiktoken==0.7.0
@@ -13,4 +13,4 @@ unstructured==0.14.5
 huggingface-hub==0.20.3
 gradio==5.49.1
 pandas==2.3.3
-numpy
+numpy