Records the architectural commitment for the timeline domain: views-not-
entities for issue 3 (ADR-036 rationale), DatePrecision import coupling
(ADR-025), the UNKNOWN-forbidden / SEASON-APPROX-legal precision contract,
the strict biconditional RANGE CHECK as a deliberate divergence from
Document, the @Version + NOT NULL audit-trail decisions, the optimistic-
lock-to-conflict translation contract (CWE-209), the server-populated-only
createdBy/updatedBy forgery guard (CWE-639), and the EventType stable
frontend styling contract.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>