Update requirements.txt

requirements.txt

@@ -1,29 +1,31 @@
-# Core AI/ML
-transformers
-torch
-sentence-transformers
-numpy
+# Core AI / ML
+torch>=2.0.0
+transformers>=4.38.0
+sentence-transformers>=2.6.0
+numpy>=1.24.0
 
 # Vector Database
-chromadb
+chromadb>=0.4.24
 
-# LangChain
-langchain
-langchain-google-genai
+# LangChain (MODERN SPLIT PACKAGES)
+langchain>=0.1.16
+langchain-core>=0.1.45
+langchain-community>=0.0.34
+langchain-google-genai>=0.0.11
 
 # API Framework
-fastapi
-uvicorn
-websockets
-pydantic
+fastapi>=0.110.0
+uvicorn[standard]>=0.29.0
+websockets>=12.0
+pydantic>=2.6.0
 
 # Firebase
-firebase-admin
+firebase-admin>=6.4.0
 
 # Utilities
-requests
-python-multipart
+requests>=2.31.0
+python-multipart>=0.0.9
+python-dotenv>=1.0.1
 
-# Optional (for production)
-gunicorn
-python-dotenv
+# Production (HF compatible)
+gunicorn>=21.2.0