Introduce a command line interface.

[greenhal]

This commit introduces a command line interface (CLI) to facilitate the execution of the benchmark independently of a Streamlit application. CLI commands have been developed for the following clients: Milvus, pgvector, Redis, Weaviate Cloud, and Zilliz Cloud. The README.md file has been revised to include instructions on running the benchmark and integrating the command line option with new or existing clients.

This commit also has some general cleanups as well.

Co-authored-by: Tyler House tahouse@users.noreply.github.com

[sre-ci-robot]

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[greenhal]

/assign @XuanYang-cn

[greenhal]

/assign @XuanYang-cn

[alwayslove2013]

@greenhal I am absolutely thrilled and deeply grateful for your incredible contribution to our project! The new CLI support you developed is going to make a huge difference for our users, and I can't wait to get it integrated and released.

Please know that I'm committed to reviewing your pull request as soon as possible. I'll give it my full attention and care to make sure it gets merged smoothly.

Again, thank you from the bottom of my heart. I'm proud and humbled to have you as part of our community. Looking forward to many more amazing collaborations ahead!

[greenhal]

Any questions on this PR?