Renamed methods across multiple client classes for consistency,
shortening and aligning naming conventions (e.g., `CheckAttachmentsAsync` → `CheckAsync`, `ValidatePdfAsync` → `ValidateAsync`).
Updated corresponding interfaces, unit tests, and documentation
to reflect the new method names. Standardized method signatures
to support both `Stream` and `byte[]` overloads consistently.
Improved error handling in tests and updated examples in the
README for batch processing and validation scenarios. Enhanced
API endpoint overview for clarity.
Added `WorkflowsClientTests` to validate the behavior of the
`WorkflowsClient` class, covering PDF validation and Swiss QR
code extraction. Introduced test doubles for `IPdfValidationClient`
and `ISwissQrCodeClient` using `Moq`.
Implemented tests for all overloads of `ExtractSwissQrCodeValidatedAsync`:
- Byte array, stream, and file path inputs.
- Valid, invalid, and empty PDFs.
- Raw mode and cancellation token handling.
- Exception propagation and orchestration contracts.
Ensured comprehensive test coverage for all branches and edge cases.
