updated req txt

requirements.txt

@@ -1,2 +1,34 @@
-torch
-transformers
+# KUSUMA - RAG System Dependencies
+# Production-ready Retrieval-Augmented Generation system
+
+# Core Framework
+streamlit>=1.28.0
+
+# Google AI & LLM
+google-generativeai>=0.3.0
+langchain>=0.1.0
+langchain-google-genai>=0.0.10
+langchain-community>=0.0.10
+langchain-text-splitters>=0.0.1
+
+# Data & Computation
+pydantic>=2.0.0
+numpy>=1.24.0
+scikit-learn>=1.3.0
+rank-bm25>=0.2.2
+
+# Utilities
+python-dotenv>=1.0.0
+
+# Optional: Vector Store Backends
+# Uncomment if using cloud backends
+# pinecone-client>=3.0.0
+# weaviate-client>=4.0.0
+# pymilvus>=2.3.0
+
+# Development Tools (Optional)
+# Uncomment for development
+# pytest>=7.4.0
+# pytest-asyncio>=0.21.0
+# black>=23.0.0
+# mypy>=1.0.0