PersonProvisioner reads bindings from schema_snapshot (RFC Q6) and
provisions Persons via lockForUpdate + firstOrCreate (RFC Q8).
Person is event-scoped (Person::$organisationScopeColumn = 'event_id'),
so the lookup matches by (email, event_id) — cross-event submissions
never collide.
Throws PersonProvisioningException on misconfiguration (failsafe —
publish guards should prevent these at config time): no_transaction,
no_event, no_identity_key, identity_key_missing_value, no_crowd_type.
Snapshot enrichment: FormFieldBindingService::toApplicatorShape +
FormSubmissionService snapshot now adds a 'bindings' (plural) key with
binding id, merge_strategy, trust_level, is_identity_key. Singular
'binding' key kept for legacy webhook / GDPR readers.
Includes RFC V4 state-injection concurrency test asserting recovery
semantics under lockForUpdate windows.
Refs: RFC-WS-6.md §3 (Q6, Q8), §4 (V4)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>