⚡ Bolt: Use sliding window for TaskGroup concurrency in ProcessMemoryScanner

[acebytes]

💡 What: Replaced static chunking with a sliding window in ProcessMemoryScanner.scanPIDs.
🎯 Why: Static chunking causes tail latency (waiting for the slowest task in a chunk). A sliding window maintains maximum concurrent execution limits continuously.
📊 Impact: Increases average throughput for memory scanning across hundreds of PIDs by keeping the worker pool consistently saturated.
🔬 Measurement: Scan hundreds of PIDs and measure the total elapsed time compared to the previous chunked approach.

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PR created automatically by Jules for task 4842493299744751736 started by @acebytes

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