参考所有分组，完成尽量多的内容。禁止顺手扩功能 smoke：锁定六分组策略边界

结论：把六分组 workstreams 总索引与 docs/linuxcnc-source-policy.md 的单上下文推进、OPFS-only、smoke 仅验证等边界做机器检查绑定；未新增 CNC 行为，未扩展 smoke fallback。\n\n测试：./check-linuxcnc-workstreams-source-map.sh；git diff --check；CNC_SIM_ALL_NATIVE_GUARDRAILS_ONLY=1 ./test-all-native.sh；./test-native.sh；./test-linuxcnc-source-link.sh。

docs/linuxcnc-workstreams-source-map.md

@@ -32,6 +32,8 @@ the temporary smoke parser.
 
 - Every active workstream must have at least one source-map document and guard
   script.
+- `docs/linuxcnc-source-policy.md` must keep the same one-context workflow
+  boundary and smoke-verification-only rule used by this index.
 - `test-native.sh` and `test-linuxcnc-source-link.sh` must run the workstream
   source-map guard before consuming generated config aliases or source-linked
   LinuxCNC objects.