⚡ Bolt: Use for-where loops to eliminate intermediate array allocations during recommendation generation

[acebytes]

💡 What: Replaced eager .filter and helper method array allocations with for ... where loops in RecommendationEngine.generateRecommendations().
🎯 Why: The original implementation eagerly allocated two temporary arrays (rosettaProcesses and agents) per scan cycle (which runs at 2Hz). This caused unnecessary memory churn and processing overhead.
📊 Impact: Eliminates two intermediate array allocations per execution, improving efficiency and reducing GC/ARC overhead in a highly active component.
🔬 Measurement: Verify changes in RecommendationEngine.swift via code review. Observe no functional regressions via test suite.

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PR created automatically by Jules for task 10189048727874852745 started by @acebytes

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