omp's raw VST capture is correct (2.00 bps = exactly BingX 0.02% published maker rate). Sign was inverted: BingX reports commission negative for a DEBIT, so -0.001291 USDT is a fee PAID, not a rebate. Refutes SPEC §0 '1 bp maker' assumption (real = 2 bp); maker-both RT ~4 bp vs taker ~10 bp — savings case survives, no rebate. Adds EXEC_NAVIGATION_MAP_FOR_OMP.md to bound omp's searches to prod/bingx/ (was grepping Nautilus framework internals). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>