[FEAT]: An user-friendly API and UI for Sotopia

[XuhuiZhou]

Description

An versatile API can help Sotopia reach more (non-technical) audience and connect with more UIs such as streamlit, nextJS, RocketChat, etc.
This feature aims to fit into the new design of Sotopia organically (#188 ). To achieve this, we have the following roadmaps:

• Designing the new FastAPI for Sotopia (doc: API endpoints for sotopia #242 )
• Implement the backend of FastAPI server
• Improve the streamlit frontend of the Sotopia UI
  • improve the name card of a character
  • improve the card of scenario (add tag for scenarios from different sources)
  • add a relevant filter for the scenario, characters for easy index
• Refurbish the NextJS frontend of the Sotopia UI (Optional)
• Connect with RocketChat (Optional)

Additional Information

Also related to #260
No response