按规划继续工作

结论：参数文件 restore/save 已通过解释器 WASM C ABI 直连 vendored LinuxCNC，native 与 host/WASM/browser 验证全部通过。

wasm-port/runtime/sdk/README.md

@@ -38,4 +38,7 @@ vendored LinuxCNC RS274NGC sources and exposes:
 - `runProgramWithIni(programText, iniPath)`
 - `runFile(path)`
 - `runFileWithIni(path, iniPath)`
+- `restoreParameters(path)`
+- `saveParameters(path, values)`
 - `writeTextFile(path, text)`
+- `readTextFile(path)`