chore(repo): ignore release artifacts

chore(release): prepare 1.5.0

test(server): add durable object hardening regressions

fix(worker): route schema admission and snapshot maybe through room metadata

fix(server): harden durable object room internals

docs(engineering): capture durable object hardening implementation

docs(engineering): document 1.4.0 update pipeline implementation

chore(release): prepare 1.4.0

docs(update): add zero-ops update pipeline RFC and user update guide

chore(lint): apply eslint cleanup across updater and plugin copy

docs(update): canonical deploy/update flow and links

fix(release): explicit compatibility floor + updater error clarity

fix(plugin): metadata hydration, provider inference, legacy-safe behavior

fix(server): patch-safe update metadata + capabilities wiring

feat(updater): add reusable ops workflows