remove langchain

[XuhuiZhou]

Closes #

📑 Description

✅ 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 73.88060% with 35 lines in your changes missing coverage. Please review.

Project coverage is 75.82%. Comparing base (ea14fda) to head (0275024).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
sotopia/generation_utils/output_parsers.py	70.37%	24 Missing ⚠️
sotopia/generation_utils/generate.py	80.00%	9 Missing ⚠️
sotopia/agents/llm_agent.py	0.00%	1 Missing ⚠️
sotopia/agents/redis_agent.py	0.00%	1 Missing ⚠️

@@            Coverage Diff             @@
##             main     #279      +/-   ##
==========================================
+ Coverage   75.34%   75.82%   +0.48%     
==========================================
  Files          64       63       -1     
  Lines        3727     3595     -132     
==========================================
- Hits         2808     2726      -82     
+ Misses        919      869      -50     

Files with missing lines	Coverage Δ
sotopia/cli/benchmark/benchmark.py	86.72% <100.00%> (-0.25%)	⬇️
sotopia/envs/evaluators.py	90.34% <100.00%> (-0.07%)	⬇️
sotopia/generation_utils/__init__.py	100.00% <100.00%> (ø)
sotopia/server.py	44.63% <100.00%> (-0.32%)	⬇️
tests/generation_utils/test_generation.py	100.00% <100.00%> (ø)
sotopia/agents/llm_agent.py	44.66% <0.00%> (ø)
sotopia/agents/redis_agent.py	20.83% <0.00%> (-1.09%)	⬇️
sotopia/generation_utils/generate.py	65.54% <80.00%> (+2.63%)	⬆️
sotopia/generation_utils/output_parsers.py	70.37% <70.37%> (ø)

[ProKil]

Can we keep uv.lock for development environment consistency?

[XuhuiZhou]

Can we keep uv.lock for development environment consistency?

I am not sure if I follow, what do you mean specifically?

[ProKil]

NVM, I thought uv.lock is removed.