MHR UI - ToD| Include decline reason and details in notice PDF and email

### Background:
Staff reported that the decline reason and the written details must appear in the notice sent to the client. They explained that the client must receive a clear statement of why the filing was rejected, and that broad categories alone do not provide adequate information. They confirmed the need for both the PDF and the email notice to include the selected reason and the specific explanation. This requirement was described as part of the review of the decline process, with an understanding that clients expect transparent and complete communication.
### The Required Change:

- [ ] The notice PDF must display the selected decline reason and the detailed explanation entered by staff.
- [ ] The email notice must contain the same reason and detail content presented in a readable form.
- [ ] The values must be passed from the decline interface into the PDF and email generation process.
- [ ] Formatting must ensure that the reason and detail appear consistently and are easy to identify.
- [ ] The change must align with the existing approach used for other client facing notices.