[Feature Request]: add migrate tool for "doc engine from Elasticsearch to Infinity"

[kalsolio]

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Is your feature request related to a problem?

Describe the feature you'd like

RAGFlow uses Elasticsearch by default for storing full text and vectors.After switch to Infinity, the existing data will be cleared.
Can we support a data migration tool?

Describe implementation you've considered

No response

Documentation, adoption, use case

Additional information

No response

[ZhenhangTung]

@kalsolio noted.