Add server-issued presence leases, scoped audience delivery, permission-aware projections and shared Redis integration through its public API. Include ordinary collaboration correctness fixes and HTTP, service, store and optional-consumer regression coverage. Local verify and live two-node browser/admin acceptance passed; coordinated publication and cold-consumer verification remain pending. Optional recovery and load research is preserved outside this release commit.
Co-Authored-By: Codex <noreply@openai.com>