Proof: ops-sentinel runtime evaluation no longer throws ReferenceError while checking disabled executor containment; covered by a regression test and full npm test.
Assumptions: Runtime containment remains intentionally disabled by shouldContainExecutorForAlerts returning false; this change only restores the symbol needed for evaluation to complete.
Still fake: Alert surfaces remain suppressed per the current safety/alert simplification; venue-native terminal fill events and realized per-trade PnL are still unavailable.
