Package notify sends human-facing notifications via shoutrrr. With no URL
configured it is a no-op (events still appear in the logs). Sends are
fire-and-forget so a slow notification endpoint never blocks an update cycle.
Notify delivers a message asynchronously. The title is passed as a shoutrrr
param so services that support it (Discord embeds, ntfy/Telegram headers) show
it prominently. Failures are logged, never fatal.