---ci---
project: orca
phase: 22
milestone: v0.12
status: execute
---/ci---
copyFile now atomic (temp + rename; was os.WriteFile which could
leave a partial DB on crash). migrateDBSchema now opens with
foreign_keys(ON) (was journal_mode only). REQ-137/F19. Build + tests green.
The --accept-identity-migration gate is enforced in the upgrade CLI
(P07 password removal; documented in the migration guide).