Errors

Reference for every error class in the Kumiko framework.

| Error | Type | When it fires | |-------|------|---------------| | delete_restricted | ConflictError | Cascade-delete guard refused because dependent rows exist | | feature_disabled | FeatureDisabledError | Handler’s owning feature is globally disabled | | field_access_denied | AccessDeniedError | Dispatcher’s field-level write check blocked a field | | invalid_transition | UnprocessableError | GuardTransition rejected a state-machine transition | | stale_state | ConflictError | Atomic UPDATE lost the race (another writer moved the row) |