* Fix broken migration/codegen CI self-checks
The git status self-checks in server-ci.yml became silent no-ops once
these jobs moved into the build container (#33679): the resolved shell
is sh, where the bash-only [[ ]] errors out, and git rejects the
checkout with "dubious ownership". Switch to POSIX [ ], mark the
workspace safe so git status runs, and print the diff on failure across
all affected checks.
* Regenerate stale migrations.list
The broken check-migrations step let an outdated migrations.list ship.
Regenerate it with make migrations-extract to add migration 000193.
* make mocks
* make gen-serialized
* make mmctl-docs