按建议继续完成后续工作

结论：upstream rs274 side-by-side 基线已从简单 parser/conversion fixture 扩展到 motion、offset、feed-control、comment/logging、numbered parameter、spindle orient、file finish 和 tool reload 等稳定 canonical 事件；完整 native 验证已通过。

wasm-port/docs/drift-report.md

@@ -66,9 +66,10 @@ semantic rewrites:
   now have standalone interpreter fixture coverage through vendored LinuxCNC
   source.
 - Fixture expectations are checked against the standalone vendored source
-  path. A first upstream `rs274` side-by-side baseline now covers simple
-  parser/conversion fixtures; adapter-heavy fixtures still need dedicated
-  native LinuxCNC baselines.
+  path. The upstream `rs274` side-by-side baseline now covers simple motion,
+  offsets, feed-control, comment/logging, numbered-parameter, spindle-orient,
+  file-finish, and tool-reload fixtures; adapter-heavy fixtures still need
+  dedicated native LinuxCNC baselines.
 
 ## Current Drift Conclusion