Re-run the flatbuf.gen pipeline and compare its output to the files
currently on disk. Exits 0 if every emitted artifact already matches
the committed source, non-zero otherwise. Nothing is written.
mix flatbuf.gen.check SCHEMA.fbs [...] [--out PATH] [--namespace NAME]
[--wire-module NAME] [--include PATH]
[--niceties LIST]Designed for CI: drop it after the tests step, and a forgotten regenerate-after-schema-edit gets caught before merge.
Flags mirror mix flatbuf.gen (no --force; this task never writes).