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⚡ Bolt: [performance improvement] Optimize LINQ Sum aggregations in WorkspacePresentation#306

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⚡ Bolt: [performance improvement] Optimize LINQ Sum aggregations in WorkspacePresentation#306
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💡 What: Refactored multiple LINQ .Sum() iterations into unified foreach passes in WorkspacePresentation.cs for calculating TrafficSimulationOutcome.
🎯 Why: When producing the summary metrics for traffic outcomes, the original code performed 10 distinct LINQ .Sum() traversals over the same nodeStates and allocations collections per traffic type. This created immense unnecessary CPU overhead and allocation GC pressure.
📊 Impact: Reduces execution time complexity in this projection from O(k*N) to O(N) and prevents excessive delegate closure and enumerator generation.
🔬 Measurement: Verified by ensuring the dotnet test suite passes fully with identical business logic and determinism.


PR created automatically by Jules for task 16351445009099775792 started by @wnj00524

…ation

Replaced multiple LINQ `.Sum()` calls over `nodeStates` and `allocations` within a `.Select` projection with a unified `foreach` loop pass in `WorkspacePresentation.cs`. This eliminates redundant enumerable traversal and delegate allocation, reducing time complexity from O(k*N) to O(N).
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