Record timeline summary reads

Verification Boundary

This suite checks module reads, writes or presentation against persisted fixtures.

Summary assertions check whole-record counts, shared interactions, task-read restrictions, organizational context and the bounded owner list.

The registered scenario bindings identify the assertion contributions this executable supplies. A compound scenario can require several suites.

It does not establish deployed Lambda transport, live Platform policy or end-user browser behavior.

The actual persistence or presentation functions execute against the migrated PostgreSQL database and fixture execution contexts.

The database queries, constraints, version checks, workspace policies and transaction boundaries under assertion remain real.

Show evidence (sources, provenance, origins, pinned commits)