* fix(ci): retry npm installs
Transient registry and package-download failures should delay a job briefly instead of requiring a manual rerun. Apply one bounded retry policy across CI, deploy, and release workflows.
* fix(ci): preserve retries for historical Android tags
Manual Android rebuilds may check out releases from before the shared retry script existed. Keep that install step self-contained and allow the shared helper's injected runner to be asynchronous.
* fix(ci): preserve retries for desktop release refs
* refactor(ci): use shared npm retry helper everywhere
Linear ramp from 0% at publish to 100% at releaseDate + rolloutHours
(default 24h, configurable per release). Beta channel and rolloutHours=0
short-circuit to admit everyone. Per-machine bucket derives from a
persistent UUID at <userData>/.updaterId and feeds electron-updater's
isUserWithinRollout hook.
Adds desktop-rollout.yml workflow for in-place rolloutHours edits on
already-published releases (hotfix to 0 or extend the ramp), serialized
against finalize-rollout in desktop-release.yml via a shared concurrency
group keyed on the tag. Replaces the hand-rolled mac manifest merge
with a js-yaml round-trip that preserves unknown fields.
