@effortlessmotion/pdf-to-md
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    Variable DEFAULT_TUNINGConst

    DEFAULT_TUNING: Tuning = ...

    Measured defaults; derivation in test/unit/tuning.test.ts. lineHeightRatio 2.4 = pair-F1 plateau edge (0.924@1.6 -> 0.995@2.4, 9,471 pairs, 2026-08-16).