按规划继续工作

结论：OPFS 参数文件已通过桥接进入 LinuxCNC-backed WASM restore/save 路径，native 与 host/WASM/browser 验证全部通过。

wasm-port/tests/browser/interp_smoke.html

@@ -8,6 +8,14 @@
   <pre id="status">running</pre>
   <script type="module">
     import { createLinuxCncInterpSdk } from "../../runtime/sdk/src/index.js";
+    import {
+      restoreMachineParametersFromOpfs,
+      saveMachineParametersToOpfs,
+    } from "../../runtime/opfs/linuxcnc-parameter-bridge.js";
+    import {
+      loadMachineTextFiles,
+      saveMachineTextFiles,
+    } from "../../runtime/opfs/machine-file-store.js";
     import {
       INTERP_BROWSER_FILE_FIXTURES,
       INTERP_BROWSER_MDI_FIXTURES,
@@ -108,6 +116,71 @@
         (await fetchText(`../fixtures/canon/${INTERP_INI_FIXTURE}.events`)).trimEnd(),
       );
 
+      await saveMachineTextFiles("browser-interp", {
+        ini: "[EMC]\nMACHINE = browser-interp\n",
+        toolTable: "T0 P0 ; no tool\n",
+        parameters: [
+          "5161 10.5",
+          "5162 20.25",
+          "5220 1",
+          "5221 2.25",
+          "5399 44",
+          "<_named_param> 123",
+          "",
+        ].join("\n"),
+      });
+      const restoredParameters = await restoreMachineParametersFromOpfs(
+        interp,
+        "browser-interp",
+        { wasmPath: "/work/browser-linuxcnc.var" },
+      );
+      verifyExpectedOutput(
+        "opfs_restore_parameters",
+        restoredParameters.result,
+        [
+          "restore_parameters=0",
+          "parameter_5161=10.5",
+          "parameter_5162=20.25",
+          "parameter_5221=2.25",
+          "parameter_5399=44",
+        ].join("\n"),
+      );
+      const savedParameters = await saveMachineParametersToOpfs(
+        interp,
+        "browser-interp",
+        {
+          5161: 12.34,
+          5162: 56.78,
+          5220: 1.0,
+          5221: 9.87,
+          5399: 66.6,
+        },
+        { wasmPath: "/work/browser-linuxcnc.var" },
+      );
+      verifyExpectedOutput(
+        "opfs_save_parameters",
+        savedParameters.result,
+        [
+          "save_parameters=0",
+          "parameter_5161=12.34",
+          "parameter_5162=56.78",
+          "parameter_5221=9.87",
+          "parameter_5399=66.6",
+        ].join("\n"),
+      );
+      const machineFiles = await loadMachineTextFiles("browser-interp");
+      verifyExpectedOutput(
+        "opfs_saved_parameter_text",
+        machineFiles.parameters,
+        [
+          "5161\t12.340000",
+          "5162\t56.780000",
+          "5221\t9.870000",
+          "5399\t66.600000",
+          "absent=<_named_param>",
+        ].join("\n"),
+      );
+
       status.textContent = "browser_interp_smoke=ok";
     } catch (error) {
       status.textContent = `browser_interp_smoke=fail ${error.stack || error.message}`;