docs: add description of keep/multi-tier storage

* build: add python demo to ci

* build: add fast write example to ci

* build: add kafka demo to ci

* fix kafka demo

* fix python demo

* fix python demo

* fix python demo

* fix python demo

* fix python demo

fix: tqOffsetSnapRead success on tq/offset-ver not existing

doc: fix the syntax of the show vnodes command

Fix/TD-21761

fix(query): add qsort for alpine.

fix(query): reset iter, iiter's hasVal to false when suspending reader

enh: remove unused old routines in sync

merge main

fix: not keep wal log vnodeCommit'ed for single replica db

fix: wal ref

* docs: update csharp connector status

* docs: fix csharp ws bulk pulling

* docs: clarify database param is optional to websocket dsn

* docs: fix python version and a few typos

* docs: fix jdbc version in connector matrix

* docs: update jdbc demo readme

* docs: update dot-net examples link

* docs: fix example code mistake

* fix: examples/csharp typos

* fix: examples/python/native_insert_example.py mistake

* docs: update python connector document to reflect python version requirement change

* docs: update with two ways to install taos-ws-py

* docs: update python sub over ws status

* fix: taosbenchmark ignore drop db failure for cloud

* fix: update taos-tools 0cd564a for main

* fix: taosbenchmark ignore drop db failure for cloud

* fix: update taos-tools 678b1df

* fix: update taos-tools 78986f1

* test: update taos-tools acfa7e3

* test: update taos-tools ada5bdd

* test: update taos-tools 11c057f

* fix: update taos-tools 7a2b109

* test: update taos-tools b35037a

* test: update taos-tools 4ba0939

* fix: update taos-tools 9e406e5

* fix: update taos-tools 39f5d2e

* test: update taos-tools 6976d0b

* fix: update taos-tools 3dcc6da

* fix: update taos-tools eed30f5

* test: reduce insert rows to avoid exceed sql length

* fix: taos-tools 71724aa

* fix: update taos-tools b1844bf

* test: update taos-tools 8d8b649

* fix: update taos-tools 0cd564a

opti: faster non-standard openTsdb json parse & remove some config for sml