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/porting-steps-standalone.md

@@ -507,10 +507,11 @@ Current verified progress:
   native LinuxCNC canonical output for simple motion, offsets, feed-control,
   comment/logging, numbered-parameter, spindle-orient, file-finish, and
   tool-reload fixtures. It now also includes file-open reset and O-word
-  subroutine fixture coverage, threading/rigid tap coverage, plus comparable
-  canonical runtime edge calls. Native output is filtered to the event classes
-  each standalone fixture explicitly expects, while upstream `rs274` output
-  gaps such as `WAIT` remain covered by the standalone harness rather than
+  subroutine fixture coverage, threading/rigid tap coverage, NURBS dispatch
+  boundary coverage, plus comparable canonical runtime edge calls. Native
+  output is filtered to the event classes each standalone fixture explicitly
+  expects, while upstream `rs274` output gaps such as `WAIT` and hidden NURBS
+  control-point detail remain covered by the standalone harness rather than
   being treated as side-by-side evidence. The comparison does not introduce a
   project-authored CNC semantics oracle.
 - `tests/fixtures/gcode_errors/g1_zero_feed.ngc` and