refactor: add exact current-format writers#8022

Xuanwo wants to merge 3 commits into

xuanwo/exact-version-stack-04-encoding-mechanismslance-format/lance:xuanwo/exact-version-stack-04-encoding-mechanismsfrom

xuanwo/exact-version-stack-05-file-runtimelance-format/lance:xuanwo/exact-version-stack-05-file-runtimeCopy head branch name to clipboard