Storages: refine VectorIndexCache to LocalIndexCache

[Lloyd-Pottiger]

What problem does this PR solve?

Issue Number: ref #9032

Problem Summary:

What is changed and how it works?

In order to accept more index kinds like FullTextIndex, this PR refine VectorIndexCache to LocalIndexCache.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[CalvinNeo]

lgtm

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: breezewish, CalvinNeo

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-06 05:41:43.770544969 +0000 UTC m=+336775.302956964: ☑️ agreed by breezewish.
• 2025-02-06 06:37:43.278146915 +0000 UTC m=+340134.810558911: ☑️ agreed by CalvinNeo.