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Miguel Ángel
7f452ad276
* feat(core): speed ramps as a rate lane in data-automation A clip can carry a rate lane in data-automation. sourceTimeAt integrates it to source time and is the one mapping the runtime uses for media seeking, playback rate, natural duration, child timelines and the audio-master clock. Rate is clamped to 0.1-10 in one place, pitch is preserved unless data-preserve-pitch is false, and ramped clips play through the media element. Lint warns on a rate lane outside video and audio. * fix(core): format the speed-ramp files and expect the unified rate clamp in the engine tests * test(engine): read the playback-rate clamp from core instead of a literal