internal/

Package fqdn is the ONE place a public hostname is normalized, validated, and proven to be under a caller's control.

Package idem is exactly-once request execution over a per-org SQLite database: a request named by a caller-supplied idempotency key runs AT MOST ONCE, and any retry — including one re-routed to a different replica after a rolling upgrade — returns the first run's recorded result instead of executing the effect again.

Package migratetest is the shared regression harness for one production bug class: a store's migrate() creates an index over a column that a pre-existing (legacy) table lacks — because the column is ALTER-added later — so CREATE INDEX fails "no such column", migrate() fails, mount fails, and the pod crashloops on deploy.

Package storagelock refuses to boot the canonical Hanzo cloud orchestrator against Postgres.