nm-string-amp-in-loop — removed 2026-10-23 (Asia/Shanghai)

这篇还没有中文，下面是英文原文。

Status: removed. On Nim 2.2.12, -d:release, linux x64, load 0.09, newSeq plus join was slower than &= (0.787×, 0.385 ms vs 0.303 ms, N=20000). An earlier run the same day was 0.694× (0.504 ms vs 0.350 ms). No memory counter showed a ≥2× win for join.

• Slug never reused.
• No active matcher.