Historical account erasure

await isUserErased(ctx, userId) from poe-tiles-sdk/v1/backend.js reads positive account-erasure evidence for this store. Use it in server-side data migrations to repair app-owned roster rows that predate your onAnonymizeUser hook. Keep that hook for future erasures.

The helper returns false on optimistic clients and when this store has no erasure record. A missing $users row alone is not evidence of erasure: a live parent-room member may not be mirrored here yet. Erasures that predate the platform's erasure records cannot be inferred from this helper. Do not remove those ambiguous rows automatically. Evidence is scoped to this store instance; it is not a global account lookup.