release-0-4-1b4

## Bump
- [ ] Major
- [ ] Minor
- [x] Beta
- [ ] Patch
- [ ] Skip

## Changelog

### Added
- ADR-0008 `edge_existence` consolidated validation workflow with dual triggers to validate direct-relation edge existence

### Fixed
- Require a dedicated schema space for DataProducts to avoid space conflicts during deploy
- Orchestrator crash when a sync trigger referenced a missing workflow
- Historic validation now uses a timestamped `job_run_id` and binds sync triggers at historic start
