Alerts: backup-contact phrasing; correct backup countdown; include per-position pay link; deep-link route rendering in-place; single-position view via deep-link; ARB alias; backup test message alignment

types/notifications.ts

@@ -20,6 +20,10 @@ export interface NotificationSettings {
   schedyApiKey?: string;
   // Contact details
   email?: string;
+  // Backup contact email and delay after first email
+  backupEmail?: string;
+  // Days after the first email to send a backup notification
+  backupDelayDays?: number;
   // Lead time before liquidation in days
   daysBefore?: number; // default 0
 }