Notifications: {bookASIN} is not replaced by the actual ASIN

[katekyonni]

Describe the bug
When a notification for the Event onNewRequest is triggered, the placeholder {bookASIN} is not beeing replaced by the ASIN of the requested book.

To Reproduce
Steps to reproduce the behavior:

1. Create a new Notification for the Event onNewRequest
2. Put {bookASIN} in the body
3. Request a book to trigger the notification
4. Notification body includes the string "{bookASIN}" instead of the actual ASIN

Deployment:

• Version: nightly:b81443d
• How is ABR deployed: Unraid Docker

Logs

2026-05-25 05:00:00 [info     ] Added new audiobook request    asin=B08G9PRS1K username=yo**i
      INFO   10.0.1.214:52008 - "POST /request/hx-add/B08G9PRS1K HTTP/1.1" 200
2026-05-25 05:00:00 [info     ] Sending notification           body={bookASIN} body_type=text event_type=onNewRequest headers={} url=http://192.168.0.197:1880/endpoint/xyz
2026-05-25 05:00:00 [info     ] Individual notification sent successfully response={bookASIN} url=http://192.168.0.197:1880/endpoint/xyz