- master-controls route: guard all mapping queries with hasMappingTables() so
an unseeded DB degrades to empty filters instead of a 500.
- docker-compose: MinIO endpoint/keys/secure overridable via env (prod defaults
preserved) — enables per-environment local config.
- migration 151: reproducible iace_projects.parent_project_id (was ad-hoc).
[migration-approved]
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>