TekH
7222f7e9a7
Changed the `ContractType` property in `EnvelopeDto`, `CreateEnvelopeCommandHandler`, and `Envelope` classes from a nullable `int` to a nullable `ContractType` enum. This improves type safety and consistency across the codebase by using a specific enum type instead of a generic integer. Updated logic in `CreateEnvelopeCommandHandler` to remove unnecessary casting.