data-03 reproduction
Public source retained with the related article. Generated results, dependency directories, runtime storage, secrets, and oversized binary artifacts are intentionally excluded.
README
# DATA-03 migration-gate reproduction
This deterministic fixture separates application compatibility, lock
acquisition, and destructive-data approval. It also models ordinary requests
queuing behind an exclusive migration waiter.
Run:
```sh
./run.sh
```
It does not run PostgreSQL, MySQL, DDL, backups, concurrent sessions, or a
restore. All sessions, schemas, timings, records, and decisions are synthetic.