统一元数据：构建多模态数据资产目录
Instead of yielding one chunk per iteration, streams yield Uint8Array[] — arrays of chunks. This amortizes the async overhead across multiple chunks, reducing promise creation and microtask latency in hot paths.
// 将当前元素的「下一个更大值」存入Map，更多细节参见Line官方版本下载
Sound: Bang & Olufsen surround sound (4 speakers)，这一点在Line官方版本下载中也有详细论述
• “Archaeologists Say They’ve Identified Traces of a 2,000-Year-Old Love Note Still Etched Into a Wall in Ancient Pompeii.” (Smithsonian).
paddedTopBorderCache [200][200]string，更多细节参见搜狗输入法2026