参考所有分组，完成尽量多的内容：收紧 manifest 坏行校验

结论：通用 LinuxCNC manifest lister 现在与输入校验一致拒绝缺少 note 或字段数量异常的坏行，并在 all-native guardrail 中覆盖通用 lister 与 native/source-link 调用链；未扩展 smoke 功能。

test-all-native.sh

@@ -1013,6 +1013,38 @@ for script in \
     fi
 done
 
+printf 'core:src/emc/rs274ngc/interp_arc.cc\n' >"$bad_line_manifest"
+if ./list-linuxcnc-manifest-sources.sh \
+    "$bad_line_manifest" \
+    core \
+    relative \
+    core \
+    core \
+    "missing manifest source" >"$bad_line_log" 2>&1; then
+    echo "common manifest source lister accepted bad manifest line" >&2
+    exit 1
+fi
+if ! grep -F "bad manifest line 1: core:src/emc/rs274ngc/interp_arc.cc" "$bad_line_log" >/dev/null; then
+    echo "common manifest source lister did not report bad manifest line clearly" >&2
+    sed -n '1,20p' "$bad_line_log" >&2
+    exit 1
+fi
+for script in \
+    list-linuxcnc-source-manifest-sources.sh \
+    test-linuxcnc-source-syntax.sh \
+    test-linuxcnc-source-objects.sh \
+    test-linuxcnc-source-link.sh; do
+    if "./$script" "$bad_line_manifest" >"$bad_line_log" 2>&1; then
+        echo "$script accepted bad manifest line" >&2
+        exit 1
+    fi
+    if ! grep -F "bad manifest line 1: core:src/emc/rs274ngc/interp_arc.cc" "$bad_line_log" >/dev/null; then
+        echo "$script did not report bad manifest line clearly" >&2
+        sed -n '1,20p' "$bad_line_log" >&2
+        exit 1
+    fi
+done
+
 ./list-linuxcnc-source-manifest-sources.sh "$manifest" core >/dev/null
 native_manifest_core=$(./list-linuxcnc-source-manifest-sources.sh "$manifest" core)
 grep -Fx "src/emc/rs274ngc/interp_arc.cc" <<<"$native_manifest_core" >/dev/null