Addresses three open review comments.
1. Major — the representation read could embed inside its DB session. The
route's precompute is suppressed, and both
`RepresentationManager.get_working_representation` and
`crud.query_documents` fall back to embedding when a query arrives without
one, so a failed precompute meant an external call inside the read session
this branch opens for the scope re-check — the connection-holding rule the
route's own comment claimed to satisfy. The innermost fallback also only
catches ValueError, so a provider outage surfaced as a 500. The semantic
query is now passed only when an embedding exists, degrading to
derived+recent retrieval. (`crud.query_documents` embedding inside a caller's
session predates this branch and is left alone.)
2. Minor — `test_resolved_scope_peer_rejected_at_membership_upsert` described a
race it does not perform. It creates an already-flagged scope and calls crud
directly; the unflagged → flagged transition is not simulated. Docstring now
says what the test actually pins.
3. Minor — `test_empty_replacement_preserves_scope_membership` asserted only
half its docstring. It passed if the empty PUT left every ordinary
membership intact; now asserts the ordinary peer's left_at is set.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
3359a3771b