Support TiDB Vector Store

[Mini256]

Description

Add TiDB Vector Store

Type of change

• [x] New feature (non-breaking change which adds functionality)

How Has This Been Tested?

• [x] Test Script (https://github.com/Mini256/tidb-mem0-demo)

Checklist:

• [x] My code follows the style guidelines of this project
• [x] I have performed a self-review of my own code
• [x] I have commented my code, particularly in hard-to-understand areas
• [x] I have made corresponding changes to the documentation
• [x] My changes generate no new warnings
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] New and existing unit tests pass locally with my changes
• [ ] Any dependent changes have been merged and published in downstream modules
• [ ] I have checked my code and corrected any misspellings

Maintainer Checklist

• [ ] closes #xxxx (Replace xxxx with the GitHub issue number)
• [ ] Made sure Checks passed

[CLAassistant]

All committers have signed the CLA.

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Name	Status	Preview	Comments	Updated (UTC)
multimodal-demo	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Mar 17, 2025 2:52am

[Mini256]

@Dev-Khant, hi, could you mind take a look at this PR?