Builds the list of enabled notifiers for the given notification config.
Iterates NOTIFIER_REGISTRY instead of an if-chain so adding a new
notifier is a registry-only change. Returns an empty array when notifications
are disabled or no factory applies.
Builds the list of enabled notifiers for the given notification config.
Iterates NOTIFIER_REGISTRY instead of an if-chain so adding a new notifier is a registry-only change. Returns an empty array when notifications are disabled or no factory applies.