feat: FastAPI Implementation of Sotopia Part One (wo websocket)

[XuhuiZhou]

Closes #

📑 Description

This pull request shows an initial implementation of the fastapi server wo the websocket part

✅ Checks

• My pull request adheres to the code style of this project
• My code requires changes to the documentation
• I have updated the documentation as required
• All the tests have passed
• Branch name follows type/descript (e.g. feature/add-llm-agents)
• Ready for code review

ℹ Additional Information

[codecov]

Codecov Report

Attention: Patch coverage is 99.47917% with 1 line in your changes missing coverage. Please review.

Project coverage is 74.47%. Comparing base (07ee2c4) to head (f6236f3).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
sotopia/ui/fastapi_server.py	98.94%	1 Missing ⚠️

@@            Coverage Diff             @@
##             main     #246      +/-   ##
==========================================
+ Coverage   72.88%   74.47%   +1.59%     
==========================================
  Files          58       61       +3     
  Lines        2972     3162     +190     
==========================================
+ Hits         2166     2355     +189     
- Misses        806      807       +1     

Files with missing lines	Coverage Δ
sotopia/database/persistent_profile.py	89.65% <100.00%> (+0.36%)	⬆️
sotopia/server.py	41.66% <100.00%> (ø)
sotopia/ui/__init__.py	100.00% <100.00%> (ø)
tests/ui/test_fastapi.py	100.00% <100.00%> (ø)
sotopia/ui/fastapi_server.py	98.94% <98.94%> (ø)

[ProKil]

Could you add tests to the implementation? FastAPI has a test runner which could be very useful: https://fastapi.tiangolo.com/tutorial/testing/

[ProKil]

I have a naming suggestion: in pyproject.toml, we can rename the extra dependency group chat to api. The original name is for the chat frontend, while we are now exposing api for simulation