fix: the mnode is also offline when dnode on it is offline

fix: show tables/stables privilege error

enh: support auth read or write

enh: optimize converting timestamp at client side

fix: fix percentile + interval res error

refact: update sync log

fix(query): check for buffer in first/last merge.

refact: adjust some sync log and func return type

test: update coverage test script

test：add test case into ci

enh: java connector support get table vgid (#18981)

fix(meta/snap): use os memory instead of cache page replacement

fix(query): projection for null input

* java connector support get table vgid

* add export to com_taosdata_jdbc_TSDBJNIConnector.h

fix: fix mem leak

fix: avoid double-free in usedb req while db in creating state