The nightly purge nulled every non-cascading key into a purged row, so a
live visit lost the practitioner it was with, a live dose its visit, a
symptom its condition. Each purge entry now lists the keys that do not
cascade, and a tombstone stays while a live row holds one. The register
test derives those keys from the schema's relations, so a new nulling key
into a purged model fails until it is listed.
Twenty of the twenty-three soft-delete models were never purged: a deleted
lab result, visit, allergy or cycle stayed in the database, in every backup
and in every key rotation for as long as the instance ran.
soft-delete-retention.ts holds one entry per model that has a deletedAt
column, derived from the schema by a guard with a counter-check. The sync
domains and the document vault keep their purges; every other model is
purged by a new nightly soft-delete-purge job after the sync feed's
75-day horizon, per account under the restore lock and in bounded batches.
A cycle start folded into a live cycle stays while that cycle does, and a
removed coach fact stays for the coach message retention, since stored
trails are withheld against it.
Marc-André Bombeck