build: add websocket build

feat: sql command 'show table tags from table_name'

refactor(query): do some internal refactor.

* docs: add table name customization note

* docs: fix a typo

feat(tmq): push optimization

fix: do not process query and fetch msg until vnode restore finished

release: build 3.0.1.4

build: release ver-3.0.1.4

fix: very long string serialization problem

release: build 3.0.1.4