Add(ref lenCounts, len) 消除 stackalloc Span 的边界检查，BuildDecodeTable 内循环提速 #8 sortedSyms 数组索引改 Unsafe.
7 7.18 1.00x .NET DeflateStream Fast 718.
主流程通常容易在演示环境里跑通，真正暴露问题的是异常输入、依赖抖动、并发放大和权限边界。
Quota-aware auto-fallback, RTK+Caveman compression saves 15-95% tokens, MCP/A2A, Desktop/PWA.
https://www.floqast.com/blog/will-robots-take-our-jobs-if-accounting-is-automated Opsera.