按建议继续完成后续工作

结论：upstream rs274 side-by-side 基线已扩展到 NURBS G5/G6 调度边界；控制点细节仍由 standalone fixture 覆盖，完整 native 验证已通过。

wasm-port/docs/drift-report.md

@@ -69,9 +69,10 @@ semantic rewrites:
   path. The upstream `rs274` side-by-side baseline now covers simple motion,
   offsets, feed-control, comment/logging, numbered-parameter, spindle-orient,
   file-open reset, file-finish, tool-reload, and O-word subroutine fixtures;
-  it also covers threading/rigid tap and comparable canonical runtime edge
-  calls. Adapter-heavy fixtures and upstream `rs274` output gaps such as
-  `WAIT` still need dedicated native LinuxCNC baselines.
+  it also covers threading/rigid tap, NURBS dispatch boundaries, and comparable
+  canonical runtime edge calls. Adapter-heavy fixtures and upstream `rs274`
+  output gaps such as `WAIT` or hidden NURBS control-point detail still need
+  dedicated native LinuxCNC baselines.
 
 ## Current Drift Conclusion