T013 worker found record_install violating CHECK(amount>0) when platform_pct
rounds cut or seller_amount to zero (unhandled IntegrityError -> HTTP 500).
Fixed: skip zero rows, grant references the paying tx; regression test added.
9 ledger tests green.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Verified on master: 14 tests green (schemas+cli+indexer); ledger API exercised
end-to-end via TestClient (grant admin-only, install 200/409/402, refund
restores balance, auth 401); adapter factory resolves local + raises
RailsNotLanded on the stub.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
