fix - do not store pydantic objects in state / convert to and from json / optionally use adk-dynamodb-session (enabled via .env file)

chore - update to latest google-adk and litellm

docs - minor cleanups to README

docs - add screenshot in README and instructions to run dev server

chore - add the poe command to run adk-web server

chore - update package-lock.json

docs - add instructions to install/run the app

chore - in frontend poe task, do 'npm install' as well

feat - add the support for GuardRails

feat - in api.py, emit AgentEvents for tool calls and responses / force a message with content DISPLAY_SEAT_MAP

feat - introduce fastapi based server / misc updates to agents and setting of current_agent in state using callbacks

feat - introduce various agents (running them via adk run or adk web for now)

fix - add missing ui/lib folder

feat - add ui (from https://github.com/openai/openai-cs-agents-demo)

chore - init project setup