refactor: do some internal refactor and fix race condition.

fix:add limit for stream batch

enh: handle too many session

fix: memory leak of tfs

fix(tsdb/cache): use block index cache with last/last_row

fix: synchronize access to raftStore

fix: keep processing on tqNextBlock failure

fix: save fill history state

fix(mnd/stream): fix ignore update compatibility

fix: rsp msg async handled issue

enh: refactor some asserts in walRead.c and doQueueScan.