An account has people, and those people belong to several cloud
instances. That requires dropping the global unique index on users.email
for a compound (instance_id, email), scoping the two unscoped lookups
that made the global index load-bearing, and projecting HQ users into
instances as real control-plane users.
Self-hosted instances are never projected into; their users stay local.
Restructured into three phases: identity, creation and lifecycle,
membership.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
mrhid6andClaude Opus 5
d15ab78bd5