Two service-level integration tests against real Postgres (V77 CHECKs are
Postgres-specific): (1) view-assembly round-trip proving the
@Transactional(readOnly=true) LazyInit guard populates persons/documents after
an em.clear()ed fresh getEvent, with a serialized-JSON assertion that no
notes/provisional/password leak; (2) real optimistic-lock 409 — editor B's
stale version yields TIMELINE_EVENT_CONFLICT end-to-end (the unit test only
proves the catch/guard branches).
Per #775.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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