按规划继续工作

结论：扩展 canon_runtime_edges fixture，固定 vendored LinuxCNC 执行后的 modal、override、spindle、mist、flood 状态读回，并同步验证文档。

wasm-port/docs/drift-report.md

@@ -96,7 +96,10 @@ semantic rewrites:
   select/change/length-offset plus M61 current-tool-number update,
   canned-cycle, state-tag motion, tool-table setup, and O-word subroutine
   fixtures; it also covers threading/rigid tap, NURBS dispatch boundaries, and
-  comparable canonical runtime edge and program-end cleanup calls. It now also checks the negative fixture set
+  comparable canonical runtime edge and program-end cleanup calls. The
+  vendored-source native harness plus Node WASM and browser smokes also pin
+  the `canon_runtime_edges` post-program modal, override, spindle, mist, and
+  flood `_setup` state. It now also checks the negative fixture set
   against upstream `rs274 -g` for expected error text and absent canonical
   event constraints.
   HAL-backed adapter-heavy fixtures, standalone modal-state assertions, and upstream