cleanup: 删除Canvas预览代码,简化PreviewVideoPanel #1402

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auto-approve-bot merged 1 commits from cleanup/remove-canvas-preview into develop 2026-08-17 14:16:06 +08:00

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灵应 3802394df4 cleanup: 删除Canvas预览代码,简化PreviewVideoPanel
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- 删除 TitlePreviewCanvas.tsx (209行): Canvas实时预览组件
- 删除 drawTitleOnCanvas.ts (175行): Canvas绘制共享函数+calculateVideoDimensions+wrapText
- 简化 PreviewVideoPanel.tsx: 删除所有Canvas叠加逻辑(drawVideoTitle/字体检测/ResizeObserver/canvas元素)
- 清理 GeneratePage.tsx: 删除sourceVideoUrl/useQuery/videoAssets/无用import
- 净删除 ~595 行代码

Canvas预览与后端FFmpeg渲染是两套独立逻辑,已统一由后端渲染标题
2026-08-17 14:06:17 +08:00