{
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    {
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  ],
  "limits": [
    "Comparison uses named settled DOM samples with no UI action between the measurement and matching screenshot. It is not a claim of pixel identity or exhaustive application equivalence.",
    "Browser captures and observer timestamps are evidence of actual interaction; configured CSS duration and sampled frames are not exact performance instruments.",
    "Complete source MP4s remain downloadable. The central film contains labelled source intervals at existing cadence, with explicit crop and timing disclosure."
  ]
}