- New `core go fuzz` command discovers Fuzz* targets and runs them
with configurable --duration (default 10s per target)
- Fuzz added to default QA checks with 5s burst duration
- Seed fuzz targets for core package: FuzzE (error constructor),
FuzzServiceRegistration, FuzzMessageDispatch
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>