按规划继续工作

结论：解释器 WASM、SDK 统一入口、浏览器解释器 smoke 与兼容性文档已闭环，native 和 host/WASM/browser 验证全部通过。

wasm-port/README.md

@@ -9,6 +9,9 @@ Rules:
 3. Port-specific code, build scripts, adapters, tests, and documentation live here.
 4. LinuxCNC source is consumed by reference, copy, generated snapshot, or scripted extraction.
 5. The browser/WASM product is managed as a separate program.
+6. Browser UI and tests should call WASM modules through `runtime/sdk/src/index.js`.
+   The SDK is a thin module-loading, string-allocation, Emscripten-FS, and C
+   ABI wrapper; it must not implement CNC semantics.
 
 Suggested layout:
 
@@ -119,6 +122,9 @@ Directory intent:
 - `vendor/linuxcnc/`: read-only copied LinuxCNC source selected for the port.
 - `runtime/core/`: the standalone simulation engine built around vendored LinuxCNC code.
 - `runtime/sdk/`: JavaScript/TypeScript API for calling the WASM engine.
+  Stable imports should come from `runtime/sdk/src/index.js`. SDK code may
+  adapt host/runtime edges, but G-code, tool, parameter, kinematics, and
+  planner behavior must remain in vendored LinuxCNC source.
 - `runtime/ui/`: HTML + JavaScript CNC simulation frontend.
 - `runtime/opfs/`: OPFS-backed persistence layer.
 - `tests/fixtures/`: stable simulation inputs shared by native and browser tests.