55b01cf396
- Updated `ReceiverGetOrCreateCommand` to include a required `IEnumerable<Signature>`. - Modified `DocumentCreateCommand` to remove `DataAsByte` and enforce a required `DataAsBase64` property with immutability. - Cleaned up SQL command formatting in `EnvelopeReceiverAddReadSQL`. - Simplified document validation logic in `EnvelopeReceiverController` by removing redundant checks. - Changed hardcoded connection string to a variable `_cnnStr` for improved security and flexibility.