[0015] 优化 (liii list) 中 list-take 和 list-drop 的性能#782
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Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
性能测试表明原实现（调用 length + take-right/drop-right） 比纯 Scheme 实现更快，故保留原实现。 Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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摘要
优化
(liii list)中list-take和list-drop函数的性能，避免length的全量遍历开销。变更内容
list-take: 从(length lst)+(take lst n)改为单次 Scheme 循环遍历list-drop: 从(length lst)+(drop lst n)改为单次 Scheme 循环遍历list-take-right/list-drop-right: 经性能测试，原实现（调用 C 实现的take-right/drop-right）更快，保留原实现devel/0015.md开发文档性能提升
测试
所有 56 个 liii/list 测试用例通过。
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