Function permits_category 

pub const fn permits_category(
    namespace: &ErrorNamespace,
    category: OperationCategory,
) -> bool

Validate that a namespace permits the given operation category.

Category Enforcement Policy

Enforces semantic constraints to prevent obvious mismatches:

• IO namespace: Cannot use Deception/Detection/Containment
• DCP namespace: Must use deception-related categories
• Log/Tel namespaces: Restricted to Audit/Monitoring/System

Strict Taxonomy Mode

When strict_taxonomy feature is enabled, formerly permissive namespaces enforce strict category mappings. See governance docs for migration guide.

Returns true if the pairing is semantically valid.