feat: rewrite Elasticsearch index and search code to achieve Elasticsearch vector and full-text search

[KennFalcon]

Checklist:

Important

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• Please open an issue before creating a PR or link to an existing issue
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I ran dev/reformat(backend) and cd web && npx lint-staged(frontend) to appease the lint gods

Description

Describe the big picture of your changes here to communicate to the maintainers why we should accept this pull request. If it fixes a bug or resolves a feature request, be sure to link to that issue. Close issue syntax: Fixes #<issue number>, see documentation for more details.

Fixes

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update, included: Dify Document
• Improvement, including but not limited to code refactoring, performance optimization, and UI/UX improvement
• Dependency upgrade

Testing Instructions

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list any relevant details for your test configuration

• Test A
• Test B

[crazywoola]

Please fix the errors in CI

[KennFalcon]

I think there is a problem with the ES volume mount in the docker-compose.yml file, which is causing the ES containers in the workflow process to go down. So I changed the mounting method of the ES data directory look like opensearch.

[KennFalcon]

Can retry the workflow? I can't reproduce the test issue on my own ES service. @crazywoola

[KennFalcon]

Still has error, I will try to fix it.

[bowenliang123]

👍🏻 Glad to have this refactoring.

[KennFalcon]

Need rollback some commit. So close the pr, and create new. #7641