按推荐建议，继续执行

结论：继续按 LinuxCNC 源码直接复用路线推进，新增 SCARA 运动学源码的 vendored 同步、switchkins native 探针、source probe 覆盖和复用文档，并通过 native 验证。

wasm-port/tools/build_native_probes.sh

@@ -430,6 +430,15 @@ TRIPOD_KINEMATICS_PROBE_SOURCES=(
   "$WRAP_DIR/linuxcnc_tripod_kinematics_probe.cpp"
 )
 
+SCARA_KINEMATICS_PROBE_SOURCES=(
+  "$VENDOR_DIR/src/emc/kinematics/kins_util.c"
+  "$VENDOR_DIR/src/emc/kinematics/switchkins.c"
+  "$VENDOR_DIR/src/emc/kinematics/userkfuncs.c"
+  "$VENDOR_DIR/src/emc/kinematics/scarakins.c"
+  "$WRAP_DIR/linuxcnc_hal_adapter.cpp"
+  "$WRAP_DIR/linuxcnc_scara_kinematics_probe.cpp"
+)
+
 TP_CORE_SOURCES=(
   "$VENDOR_DIR/src/emc/tp/tp.c"
   "$VENDOR_DIR/src/emc/tp/tc.c"
@@ -687,6 +696,13 @@ build_binary_target \
   TRIPOD_KINEMATICS_PROBE_SOURCES \
   NO_LINK_FLAGS
 
+build_binary_target \
+  linuxcnc_scara_kinematics_probe \
+  "$BUILD_DIR/linuxcnc_scara_kinematics_probe" \
+  TP_FLAGS \
+  SCARA_KINEMATICS_PROBE_SOURCES \
+  NO_LINK_FLAGS
+
 if [[ "$(tr -d '[:space:]' < "$BUILD_DIR/linuxcnc_kinematics_probe.exitcode")" == "0" ]]; then
   set +e
   "$BUILD_DIR/linuxcnc_kinematics_probe" \
@@ -867,6 +883,21 @@ else
     "$BUILD_DIR/linuxcnc_tripod_kinematics_probe.run.stderr.log"
 fi
 
+if [[ "$(tr -d '[:space:]' < "$BUILD_DIR/linuxcnc_scara_kinematics_probe.exitcode")" == "0" ]]; then
+  set +e
+  "$BUILD_DIR/linuxcnc_scara_kinematics_probe" \
+    >"$BUILD_DIR/linuxcnc_scara_kinematics_probe.run.stdout.log" \
+    2>"$BUILD_DIR/linuxcnc_scara_kinematics_probe.run.stderr.log"
+  SCARA_KINEMATICS_RUN_RC=$?
+  set -e
+  echo "$SCARA_KINEMATICS_RUN_RC" > "$BUILD_DIR/linuxcnc_scara_kinematics_probe.run.exitcode"
+else
+  rm -f \
+    "$BUILD_DIR/linuxcnc_scara_kinematics_probe.run.exitcode" \
+    "$BUILD_DIR/linuxcnc_scara_kinematics_probe.run.stdout.log" \
+    "$BUILD_DIR/linuxcnc_scara_kinematics_probe.run.stderr.log"
+fi
+
 if [[ "$(tr -d '[:space:]' < "$BUILD_DIR/linuxcnc_tp_api_probe.exitcode")" == "0" ]]; then
   set +e
   "$BUILD_DIR/linuxcnc_tp_api_probe" \
@@ -1061,6 +1092,12 @@ build_object_target \
   "$VENDOR_DIR/src/emc/kinematics/tripodkins.c" \
   TP_FLAGS
 
+build_object_target \
+  linuxcnc_scarakins_source_probe \
+  "$BUILD_DIR/linuxcnc_scarakins_source_probe.o" \
+  "$VENDOR_DIR/src/emc/kinematics/scarakins.c" \
+  TP_FLAGS
+
 build_object_target \
   linuxcnc_interp_convert_source_probe \
   "$BUILD_DIR/linuxcnc_interp_convert_source_probe.o" \