Move postgres-init-hectic-inheritance test (13 cases) to
migrator/init-hectic-bundle since the bundle is now applied by `migrator init`
instead of `postgres-init`. Drop init-migrator-with-inherits since
`--inherits` is now a deprecation warning, not an error. Add db-tool
hydrate-hook test (5 cases) covering --no-hook skip, default apply,
idempotency, and HECTIC_DOTENV_FILE. Augment init-migrator with
hectic.version and hectic.secret table assertions.
yukkop
1a209f6960