Root cause: Dual-source architecture for owner password (Gitea secret
ENV_OWNER_PASSWORD vs host .env OWNER_PASSWORD) caused drift when
the DB was ever re-seeded or the volume recreated.
Changes:
- Add SeedAudit entity + migration to track one-time seed operations
- EnsureDatabaseAsync checks SeedAudit BEFORE seeding — owner is never
re-created even if the Users table is wiped
- Deploy and rollback workflows now read OWNER_PASSWORD from the host's
persistent .env (single source of truth) instead of Gitea secrets
- compose.yaml documented: OWNER_PASSWORD only used during initial seed
- Cleanup: .gitignore extended for core dumps, changelog/deployment.md
updated with 2026-06-20 session notes
After this fix the DB is the single source of truth for the owner
password after initial seed. The host .env is the single reference
for the initial value.