高效率推进 LinuxCNC 源码对齐流程

说明：集中 LinuxCNC 源码清单与 wasm/native probe 的路径解析，补强 manifest、shim、source-link 检查，并保持 LinuxCNC 源码后端对齐验证流程可复用。

验证：./test-native.sh；./test-linuxcnc-source-link.sh；./test-all-native.sh；wasm source/probe 相关脚本。

list-linuxcnc-wasm-safe-shims.sh

@@ -0,0 +1,45 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+filter=${1:-}
+
+awk '
+    /set\(linuxcnc_wasm_safe_probe_shims/ {
+        in_list = 1
+        next
+    }
+    in_list && /^[[:space:]]*\)/ {
+        exit
+    }
+    in_list {
+        line = $0
+        sub(/^[[:space:]]*/, "", line)
+        sub(/[[:space:]]*$/, "", line)
+        if (line == "") {
+            next
+        }
+        sub(/^\$\{CMAKE_CURRENT_SOURCE_DIR\}\//, "core/", line)
+        print line
+    }
+' core/CMakeLists.txt | while IFS= read -r source; do
+    if [[ ! -f "$source" ]]; then
+        echo "missing wasm-safe shim source: $source" >&2
+        exit 1
+    fi
+    if [[ -n "$filter" && "$(basename "$source")" != "$filter" ]]; then
+        continue
+    fi
+    printf '%s\n' "$source"
+done | {
+    found=0
+    while IFS= read -r source; do
+        found=1
+        printf '%s\n' "$source"
+    done
+    if [[ -n "$filter" && "$found" -eq 0 ]]; then
+        echo "missing wasm-safe shim in CMake list: $filter" >&2
+        exit 1
+    fi
+}