Module errors 

common::errors

Purpose:

• Define the kernel-owned validation error taxonomy shared by compute-style primitive registration and catalog assembly.

Owns:

• ValidationError as the typed authority for common compute registration failures.
• The Display/Error surface higher layers rely on for chaining instead of flattening these errors into strings.

Does not own:

• Primitive-family wrapper errors in catalog assembly.
• Host or product-facing error descriptors.

Connects to:

• catalog.rs, which wraps these failures in CoreRegistrationError.
• Compute validation callers that need one authoritative error surface.

Safety notes:

• Display intentionally stays aligned with ErrorInfo summary/rule-id so registration diagnostics share one semantic authority.

Enums

ValidationError