nx_bulk_ingest_test.nx

nx_bulk_ingest_test.nx -- proves the polite-fetch -> bulk-catalog hand-off on a realistic arXiv-style scenario: the team's polite fetch lands on a 500-entry listing; it DETECTS the repository, hands off to BULK only when it has polite spare capacity (else DEFER), harvests as a POLITE pipeline (never undercuts the floor), content-dedups already-mirrored docs, GROWS the Library so self-serve coverage jumps, and CONVERGES when the catalog is exhausted (never infinite). Exit 0 iff every property holds.