## Description
Introduces the ability for users with the **Assistant** role to prefill
fields on behalf of other signers. Assistants can fill in various field
types such as text, checkboxes, dates, and more, streamlining the
document preparation process before it reaches the final signers.
https://github.com/user-attachments/assets/c1321578-47ec-405b-a70a-7d9578385895
## Description
Adds support for rejecting a given document informing the document
owner.
Flows for resolving a rejection don't currently exist so it's up to the
document owner to reach out to the recipient and work out a way to move
forward via a new document or offline agreement.
## Related Issue
## Changes Made
- Added new rejection properties to the recipient schema
- Added API endpoints to support rejection
- Added email templates for notifying the document owner and recipient
- Added a dialog on the signing page to start the rejection flow.
## Testing Performed
- Manually tested the flow end to end
- Automated tests are planned
