- Added repository access to retrieve signatures and their annotations for a given envelope.
- Updated `BurnInstantJSONAnnotationsToPDF` to accept `envelopeId` and load elements from the database.
- Updated imports to include `DigitalData.Core.Abstractions` and Entity Framework references.
Updated import statements and changed references from
`Domain.Constants` to `Value` in `APIEnvelopeJob.vb`,
`FinalizeDocumentJob.vb`, `HistoryModel.vb`, `EmailService.vb`,
and job scheduling files. This standardizes constant access
and improves code maintainability and readability.
