Module error 

Error types for the HWPX decoder.

Error codes occupy the 4000-4099 range, consistent with the Foundation (1000), Core (2000), and Blueprint (3000) convention.

Enums

HwpxError

Top-level error type for HWPX decoding operations.

HwpxErrorCode

Error codes for smithy-hwpx (4000-4099 range).

Type Aliases

HwpxResult

Convenience alias used throughout this crate.