getCommonNotificationTxes() passed a hardcoded empty array as the `types`
argument to pushInboxNotifications(), so every notification created through
it was stored with `types: []`.
NotificationsHandler resolves the allowed providers per notification type.
With no types it matches no provider, logs "no notifications with email
provider, skipping" and returns, so these notifications can never be
delivered by email or any non-inbox provider.
This affects everything routed through this helper - ToDos, process
approvals (process:ids:ApproveRequestCreated), HR requests - while
activity-message notifications are unaffected because that path passes its
types through.
The types are already computed: isShouldNotifyTx() returns a NotifyResult
mapping each provider to the NotificationType docs that matched, and the
result is passed in as notifyResult. Forward the inbox provider's types
instead of discarding them.
