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  "azimlib_version": "0.1.0",
  "python": "3.14.4",
  "platform": "Windows-11-10.0.26200-SP0",
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    "Serial alternating warm-composition trials; no GUI/event-loop latency measurement.",
    "All three modes use current immutable geometry bounds; before replaces only Viewport.",
    "PNG comparisons use one output per mode, after timing, without file I/O in timings.",
    "dense contains 2501 synthetic polygons, not municipal boundaries.",
    "Results are local observations, not a general speed guarantee."
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