Fixs : add email.bodyValues to ctx object passed to onRenderEmailBody

[paulhenry46]

Summary

2 fixs :

• add bodyValues: email.bodyValues to ctx object passed to onRenderEmailBody. It will be used to decrypt inline PGP emails. (Without, we could use the blobId of message and fetch, but it would be inefficient because the data is already fetched.)
• add 'upfiles.get', 'upfiles.save', which correspond to methods introduced by feat: add 3 new plugin hooks : onBeforeBlobUpload, onBeforeDraftAutoS… #586 to protocol plugin sandbox.

Related Issues

Related to #481

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Refactor / code quality improvement
• Chore / dependency update / CI change

Checklist

• I have read the Contributing Guide
• My code follows the project's code style and conventions
• I have run npm run typecheck && npm run lint and there are no errors
• The build passes (npm run build)
• I have tested my changes locally
• I have added or updated documentation if needed
• I have updated translations (locales/) if my changes affect user-facing text
• I have included screenshots or a screen recording for UI changes

Screenshots / Demo

Notes for Reviewers