chore: change Yi model SDK to OpenAI

[soulteary]

Description

Models like Yi that use OpenAI's SDK will have better performance, be able to use more SDK functions, and most importantly, have lower maintenance costs.

Type of Change

Please delete options that are not relevant.

• Improvement，including but not limited to code refactoring, performance optimization, and UI/UX improvement

How Has This Been Tested?

VL model

NLP model

Suggested Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods
• optional I have made corresponding changes to the documentation
• optional I have added tests that prove my fix is effective or that my feature works
• optional New and existing unit tests pass locally with my changes

[takatost]

LGTM