## 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
Currently users can sign and complete draft documents, which will result
in a completed document in an invalid state.
## Changes Made
- Prevent recipients from inserting or uninserting fields for draft
documents
- Prevent recipients from completing draft documents
- Remove ability to copy signing tokens unless document is pending
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
- **New Features**
- Enhanced document status visibility and control across various
components in the application. Users can now see and interact with
document statuses more dynamically in views like `DocumentPageView`,
`DocumentEditPageView`, and `DocumentsDataTable`.
- Improved document signing process with updated status checks, ensuring
actions like signing, completing, and removing fields are only available
under appropriate document statuses.
- **Bug Fixes**
- Adjusted document status validation logic in server-side operations to
prevent actions on incorrectly stated documents, enhancing the overall
security and functionality of document processing.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
