book_empty was `not book` (the aggregated returns dict), so deploy members present but with no
overlapping forward_nav data (e.g. a just-re-inceptioned deploy track) read as "first edge" and
AUTO-PROMOTED with no correlation check — a one-way false-promote on a capital-adjacent gate.
Now `not book_sids` (membership): no deploy members → promote (true first edge); members present
but no data → indeterminate → WITHHOLD, per spec. + regression test.
Also neutralizes the real registry's deploy-tier tracks in two pre-existing promotion tests that
were unknowingly relying on the old inversion (they didn't seed nav data for the real deploy book).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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