requirements.txt

# Dependencias esenciales para producción Railway
python-dotenv==1.1.1
langchain-core
langchain-openai
langgraph==1.0.9

trustcall==0.0.39
pydantic==2.12.5
psycopg==3.2.10

gradio==5.23.1
huggingface_hub>=0.24.0
psycopg[binary]
langgraph-checkpoint-postgres[standard]