S2c Phase 8.
- API.md: new **Form Builder (Public)** section documenting all 6
public endpoints (GET schema + time-slots + sections; POST draft,
PUT save, POST submit) with request/response examples, error codes,
and the identity_match / schema_drift contracts. No PII-echo noted
explicitly.
- SCHEMA.md bumped to v2.1:
- changelog entry for S2c.
- form_submissions table gains schema_version_at_open +
identity_match_status columns; UNIQUE (form_schema_id,
idempotency_key) replaces the composite index; a new composite
index (form_schema_id, identity_match_status) landed for the
organiser "pending-match" dashboard.
- ARCH-FORM-BUILDER.md bumped to v1.3 with new §10.4 "Public
submission lifecycle — draft/save/submit split" documenting the
three-endpoint contract, idempotency, schema-drift detection,
access rules, the standardised error envelope, and the dependency
data sub-endpoints.
- BACKLOG.md adds:
- FORM-04 (grace_days configurable — current implementation still
uses the hard-coded 7-day window)
- DOC-01 (Scramble / OpenAPI generator for API.md to reduce the
docs-drift effort going forward).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>