test：add test case for functions

test:modify testcase of muti-mnode

enh: let rollback stage stage also need to be consistent

refactor: sdb commit index

refactor: do some internal refactor.

fix(stream): build ctb name

enh(mnode): transaction conflict supports two db

Co-authored-by: Nt_max <1172915550@qq.com>

test: add case for max about distribute plan

test: modify case

fix: merge data in memory and file

feat: support show apps command