add auto benchmark scripts

[LuoPengcheng12138]

Description

Firstly

npm run dev

Secondly

  python3 benchmark/benchmark_scripts.py \
    --chat-base http://localhost:5002 \
    --email [email protected] \
    --model-source manual \
    --model-platform anthropic \
    --model-type claude-haiku-4-5-20251001 \
    --api-key sk-example \
    --api-url https://api.anthropic.com/v1/ \
    --skip-history

What is the purpose of this pull request?

• [ ] Bug fix
• [x] New Feature
• [ ] Documentation update
• [ ] Other