按推荐建议，继续执行

结论：已接入 LinuxCNC canonical 坐标系边界事件记录，并新增 G55、G10 L2、G92、G92.1、G54 回归 fixture；原生 probe 验证通过。

wasm-port/docs/porting-steps-standalone.md

@@ -370,6 +370,16 @@ Current verified progress:
   conversion through vendored `interp_cycles.cc`, including `G81`, `G82`,
   `G83`, `G80` cancellation, dwell, peck drilling, and incremental `L`
   repeats.
+- `runtime/core/linuxcnc_wrap/linuxcnc_interp_minimal_runtime.cpp` now records
+  coordinate-system canonical boundary calls emitted by vendored LinuxCNC
+  conversion code: `SET_G5X_OFFSET`, `SET_G92_OFFSET`, `SET_XY_ROTATION`,
+  `CANON_UPDATE_END_POINT`, `USE_LENGTH_UNITS`, and `SELECT_PLANE`.
+  `tests/fixtures/gcode/coordinate_offsets.ngc` and
+  `tests/fixtures/canon/coordinate_offsets.events` pin `G55`, active
+  `G10 L2`, `G92`, `G92.1`, and `G54` behavior from
+  `interp_convert.cc::convert_coordinate_system()`,
+  `interp_convert.cc::convert_setup()`, and
+  `interp_convert.cc::convert_axis_offsets()`.
 - `tests/fixtures/gcode_errors/g1_zero_feed.ngc` and
   `tests/fixtures/canon_errors/g1_zero_feed.expected` pin the negative
   `G1` zero-feed case. The source basis is LinuxCNC