推进LinuxCNC WASM最小解释器验证

结论：新增独立 wasm-port 工作区，修复 native probes include 路径，最小解释器 harness 已可验证 G0 直线快速、G1 进给和 SET_FEED_RATE canonical event。检查：git diff --check 通过；wasm-port/tests/native/verify_native_probes.sh 通过。

wasm-port/tests/native/verify_native_probes.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "$0")/../.." && pwd)"
+BUILD_DIR="$ROOT_DIR/build/native"
+
+"$ROOT_DIR/tools/build_native_probes.sh"
+
+check_exitcode() {
+  local name="$1"
+  local file="$BUILD_DIR/$name.exitcode"
+
+  if [[ ! -f "$file" ]]; then
+    echo "missing exitcode: $file" >&2
+    exit 1
+  fi
+
+  local rc
+  rc="$(tr -d '[:space:]' < "$file")"
+  if [[ "$rc" != "0" ]]; then
+    echo "$name failed with exit code $rc" >&2
+    if [[ -f "$BUILD_DIR/$name.stderr.log" ]]; then
+      sed -n '1,160p' "$BUILD_DIR/$name.stderr.log" >&2
+    fi
+    exit 1
+  fi
+}
+
+check_exitcode linuxcnc_interp_state_probe
+check_exitcode linuxcnc_namedparam_harness
+check_exitcode linuxcnc_interp_minimal_harness
+check_exitcode linuxcnc_interp_minimal_harness.run
+check_exitcode linuxcnc_rs274_compile_probe
+
+RUN_STDOUT="$BUILD_DIR/linuxcnc_interp_minimal_harness.run.stdout.log"
+
+grep -Fq "read=0" "$RUN_STDOUT"
+grep -Fq "execute=0" "$RUN_STDOUT"
+grep -Fq "execute_feed=0" "$RUN_STDOUT"
+grep -Fq "parse_line=0" "$RUN_STDOUT"
+grep -Fq "canon_event=STRAIGHT_TRAVERSE line=0 x=1 y=2 z=0" "$RUN_STDOUT"
+grep -Fq "canon_event=SET_FEED_RATE rate=120" "$RUN_STDOUT"
+grep -Fq "canon_event=STRAIGHT_FEED line=0 x=3 y=4 z=0" "$RUN_STDOUT"
+
+echo "native probe validation complete"