feat: add type definition to signal recipients

follows more the notifications way of setting recipients and is more
future proof

Signed-off-by: Heikki Hellgren <heikki.hellgren@op.fi>

plugins/notifications-backend/src/service/router.ts

@@ -286,7 +286,7 @@ export async function createRouter(
 
       if (signals) {
         await signals.publish<NotificationReadSignal>({
-          recipients: [user],
+          recipients: { type: 'user', entityRefs: [user] },
           message: { action: 'notification_read', notification_ids: ids },
           channel: 'notifications',
         });
@@ -296,7 +296,7 @@ export async function createRouter(
 
       if (signals) {
         await signals.publish<NotificationReadSignal>({
-          recipients: [user],
+          recipients: { type: 'user', entityRefs: [user] },
           message: { action: 'notification_unread', notification_ids: ids },
           channel: 'notifications',
         });
@@ -400,7 +400,7 @@ export async function createRouter(
 
       if (signals) {
         await signals.publish<NewNotificationSignal>({
-          recipients: user,
+          recipients: { type: 'user', entityRefs: [user] },
           message: {
             action: 'new_notification',
             notification_id: ret.id,