feat: 完整中文翻译 maths-cs-ai-compendium（数学·计算机科学·AI 知识大全）
翻译自英文原版 maths-cs-ai-compendium，共 20 章全部完成。 第01章 向量 | 第02章 矩阵 | 第03章 微积分 第04章 统计学 | 第05章 概率论 | 第06章 机器学习 第07章 计算语言学 | 第08章 计算机视觉 | 第09章 音频与语音 第10章 多模态学习 | 第11章 自主系统 | 第12章 图神经网络 第13章 计算与操作系统 | 第14章 数据结构与算法 第15章 生产级软件工程 | 第16章 SIMD与GPU编程 第17章 AI推理 | 第18章 ML系统设计 第19章 应用人工智能 | 第20章 前沿人工智能 翻译说明： - 所有数学公式 $...$ / $$...$$、代码块、图片引用完整保留 - mkdocs.yml 配置中文导航 + language: zh - README.md 已翻译为中文（兼 docs/index.md） - docs/ 目录包含指向各章文件的 symlink - 约 29,000 行中文内容，排除 .cache/ 构建缓存
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<text x="350" y="22" fill="#333" font-size="14" font-weight="bold" text-anchor="middle">Sampling: Proper vs. Aliased</text>
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<!-- ===== LEFT PANEL: Proper Sampling ===== -->
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<text x="170" y="48" fill="#27ae60" font-size="12" font-weight="bold" text-anchor="middle">fs > 2f : Correct Sampling</text>
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<text x="170" y="243" fill="#27ae60" font-size="9" text-anchor="middle">Reconstructed signal matches original</text>
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<text x="350" y="283" fill="#333" font-size="10" text-anchor="middle">Nyquist theorem: sample at >= 2x the highest frequency to avoid aliasing</text>
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