doc: remove 3.1.0.0

release 3.1.0.0

merge 3.0 into branch main

disable infinite count loop

other: merge 3.0

* docs: add r language to connector

* docs: add r lang english version in connector

* docs: fix include path and note format

* Update 60-r-lang.mdx

minor changes

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Co-authored-by: Ndanielclow <106956386+danielclow@users.noreply.github.com>

test: add test case for r

enh(tsdb/cache/read): lazy init table map hash and entries

add keep alive parameter

fix: null pointer check for mutex on windows

fix: retention file corruption

other: merge 3.0

reload state window state

docs:add doc for schemaless