按提示词结论补构建校验依据锁

check-linuxcnc-inputs-cached.sh

@@ -3,6 +3,9 @@ set -euo pipefail
 
 cd "$(dirname "$0")"
 
+# LinuxCNC source basis: the cached input checker keys check-linuxcnc-inputs.sh
+# results by manifest contents and LinuxCNC source mtimes so source-backed
+# rs274/kinematics coverage is not silently reused after upstream changes.
 cache_dir=${CNC_SIM_PREFLIGHT_CACHE_DIR:-}
 check_args=("$@")
 if [[ "${1:-}" == "--cache-dir" ]]; then