Refactored the `Handle` method in `ReadDocumentQueryHandler` to
eagerly load related data (`Elements` and `Annotations`) using
`Include` and `ThenInclude`. Introduced a reusable `docQuery`
variable to reduce code duplication and ensure consistency in
queries for both `query.Id` and `query.EnvelopeId`. No changes
were made to the mapping logic or exception handling.
TekH
8dc561cb8f