Continue dual-stop paths after margin declines

[luisleo526]

What

• Continue evaluating the later member of an eligible same-bar dual-entry stop path when the path-first stop reaches its trigger but broker margin admission declines it.
• Keep the behavior narrowly scoped to two unlinked, pure entry stops created while truly flat.
• Add direct scope tests plus fill-path coverage for admitted, declined, excluded, and ordering cases.

Why

The path resolver previously latched the price-path winner before broker-emulator admission. When that stop was then declined for insufficient margin, the affordable path-later stop was suppressed. TradingView continues along the intrabar path in this case, so the latch produced a missing trade.

Safety boundaries

• Requires exactly two same-created-bar STOP entry orders from a true-flat evaluation.
• Excludes OCA groups, mixed MARKET/LIMIT/RAW order books, process-orders-on-close creation, calc-on-order-fills creation, and bar magnifier.
• Resets the path winner only after the normal risk check passes and the shared admission helper proves margin decline.
• The later stop still passes all ordinary eligibility, risk, and broker-admission checks; it is never force-filled.

Validation

• Engine: 107/107 tests passed; focused order/fill suite 49/49 passed.
• Independent cold review: clean.
• Community full gate: 412/412 accounted, 1 tier upgrade, 0 downgrades.
  • Waranyu: Strong to Excellent, canonical 369 TV / 369 engine / 369 matched; count abs 0; PnL P90 0.0001.
  • Aht: recovered the missing 2025-12-17 TradingView long and all 481 TV trades now match; it remains Strong because 8 engine-only residual trades remain visible.
• Corpus: 252/252 successful; 243 Excellent / 8 Strong / 1 anomaly; no tier movement.
• N=2 attribution gate tested the margin-decline continuation independently and in composition; publication gate passed with all cells complete. The competing frozen-placement-quantity factor was rejected.
• Used the existing TradingView oracle tapes; no re-export was needed.

Impact

This fixes a broker-emulator ordering defect where one bug could hide another admissible entry. It improves one real strategy without widening global tolerances or concealing the remaining Aht residuals.