参考所有分组，完成尽量多的内容：锁定kinematics源码映射结论

结论：新增 kinematics source-map 文档和同步检查，固定 manifest 分组计数与 source-coverage 边界，并接入 native/all-native guardrail；未扩展 smoke 功能。

check-linuxcnc-kinematics-source-map.sh

@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+# LinuxCNC source basis: this guard keeps the kinematics source map aligned
+# with linuxcnc-kinematics-source-files.txt, which enumerates LinuxCNC
+# kinematics, posemath, switchkins INI/HAL/remap/tooldata/assets, and adjacent
+# build metadata. It validates source coverage documentation only; it does not
+# add or interpret CNC behavior.
+python3 - <<'PY'
+from pathlib import Path
+import re
+
+manifest = Path("linuxcnc-kinematics-source-files.txt").read_text(encoding="utf-8").splitlines()
+source_map = Path("docs/linuxcnc-kinematics-source-map.md").read_text(encoding="utf-8")
+
+expected_groups = [
+    "core",
+    "config",
+    "remap",
+    "component",
+    "generated",
+    "header",
+    "metadata",
+    "asset",
+    "tooldata",
+]
+counts = {group: 0 for group in expected_groups}
+for line in manifest:
+    if not line or line.startswith("#"):
+        continue
+    group = line.split(":", 1)[0]
+    if group not in counts:
+        raise SystemExit(f"unexpected kinematics manifest group in source map guard: {group}")
+    counts[group] += 1
+
+for group, count in counts.items():
+    pattern = rf"\| `{re.escape(group)}` \| {count} \|"
+    if not re.search(pattern, source_map):
+        raise SystemExit(
+            f"docs/linuxcnc-kinematics-source-map.md {group} count no longer matches linuxcnc-kinematics-source-files.txt"
+        )
+
+for group in expected_groups:
+    if f"`{group}`" not in source_map:
+        raise SystemExit(
+            f"docs/linuxcnc-kinematics-source-map.md is missing kinematics manifest group {group}"
+        )
+
+required_phrases = [
+    "not browser API surface",
+    "OPFS-only",
+    "derive M428/M429/M430 cases from",
+    "RTCP and five-axis coverage",
+    "./check-linuxcnc-inputs.sh linuxcnc-kinematics-source-files.txt --require-kinematics-complete",
+    "./check-linuxcnc-switchkins-remap-table.sh linuxcnc-kinematics-source-files.txt",
+]
+for phrase in required_phrases:
+    if phrase not in source_map:
+        raise SystemExit(
+            f"docs/linuxcnc-kinematics-source-map.md is missing source-coverage boundary phrase: {phrase}"
+        )
+PY