Adds PurposeGuardProvider as a parallel interface to PurposeDefinition (value object stays untouched). Seven concrete providers, one per v1.0 purpose, each declaring its publish-guard list. Registry resolves and caches providers via guards_class config key. Universal guards (MaxOneIdentityKeyPerTargetEntity, AppendStrategyRequiresCollectionTarget, NoAmbiguousTrustLevels, IdentityKeyBindingsOnlyInFirstSection) wire into every purpose. The section guard is a cheap no-op when section_level_submit=false. ArtistAdvanceGuards omits RequiresIdentityKeyBinding because the artist subject is resolved via portal token, not form data. Same reasoning for supplier_intake (production_request) and the auth-based purposes. Includes a cross-cutting BindingTypeRegistryConsistencyTest that verifies tasks 5/7/8 do not contradict each other (registry ↔ guards ↔ purpose required_bindings). Refs: RFC-WS-6.md §3 (Q9, Q13) Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
1.2 KiB
1.2 KiB