[toreleon]

💡 What:
Replaced multiple sequential .reduce() iterations with single, consolidated for loops in src/agent/backtestRunner.ts.

🎯 Why:
The original code performed three separate turnRows.reduce() passes (O(3N)) to aggregate totalCost, totalIn, and totalOut. It also used equityRows.reduce() which incurs function call and closure overhead. Consolidating the turnRows aggregation into a single pass reduces iteration overhead to O(N), and replacing the reduce callbacks with native for loops avoids unnecessary closure and callback allocations on the hot path during backtest generation.

📊 Impact:
Reduces the iteration complexity of turnRows processing from O(3N) to O(N) and eliminates the closure and garbage collection overhead of Array.prototype.reduce() for both turnRows and equityRows.

🔬 Measurement:
Run pnpm test tests/orchestrator.test.ts or pnpm test tests/team.test.ts which exercise the backtest flows to ensure functionally identical outputs. Verified by successful test runs.

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PR created automatically by Jules for task 11452144176322496807 started by @toreleon

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