拖拽片段交换 + 标准导出全套 + 预览/素材体验修复#172

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appergb wants to merge 11 commits into

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feat/drag-swap-and-export

Commits on Jun 29, 2026

feat(timeline): cross-track clip swap + clearer drag-in placement ghost

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feat(export): XMEML rename + EDL / OTIO / FCPXML export modules

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feat(export): format picker UI + api wrappers for interchange formats

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fix(preview/media/export): show dropped clip, steady scrub, lazy library, preload-on-select, opaque export menu

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fix(edl): use enumerate for event numbers (clippy explicit_counter_loop on newer stable)

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fix(render): request adapter limits so export above 2048px doesn't crash

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fix(preview): explicit z-order so timeline preview matches the exported frame

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feat(preview): instant hi-res poster + progressive streaming; light preload

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feat(timeline): yellow insertion line + trackpad haptic snap feedback (upstream parity)

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feat(timeline): snap the scrubbed playhead to clip edges (with haptic tick)

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fix(timeline): draw the new-track ghost ABOVE the insertion line (upstream ghostY)

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