Module error 

Structured error types for binding-friendly API.

These error types are designed to be easily converted to JSON for FFI boundaries while providing rich error information.

Structs

ErrorDetails

Error details for response envelope.

ErrorResponse

JSON error response wrapper for FFI.

ResponseEnvelope

Stable JSON response envelope for FFI.

TokmdError

Structured error for FFI-friendly error reporting.

Enums

ErrorCode

Error codes for tokmd operations.