按建议继续完成后续工作

结论：upstream rs274 side-by-side 基线已扩展到可比较的 canonical runtime edge 调用；WAIT 仍保留为 standalone harness 覆盖，完整 native 验证已通过。

wasm-port/docs/drift-report.md

@@ -69,7 +69,9 @@ 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;
-  adapter-heavy fixtures still need dedicated native LinuxCNC baselines.
+  it also covers comparable canonical runtime edge calls. Adapter-heavy
+  fixtures and upstream `rs274` output gaps such as `WAIT` still need dedicated
+  native LinuxCNC baselines.
 
 ## Current Drift Conclusion