entbappy/Agentic-Chatbot-using-LangGraph ? reverse-engineered prompt

Build me a simple agentic chatbot web app that runs locally and can also be packaged in Docker for deployment. I want a clean chat interface where I can ask questions and the bot can use tools when it needs to, like web search, weather, and other API based lookups, then return a helpful answer in the chat. Please wire up the app so it can read the needed API keys from environment variables, and keep the code easy to run with a single start command.

Also set it up so it can be deployed to AWS with GitHub Actions, using Docker Hub as the image registry, and include the pieces needed for running it on an EC2 machine on port 8501. If you need to check current docs for LangGraph, Streamlit, Docker, or GitHub Actions, go ahead and look them up online. Make it polished enough that I can open it, chat with it, and deploy it without having to guess what to do next.