按规划继续工作

结论：接入 vendored LinuxCNC tooldata_common.cc 负责刀具表解析与保存，WASM/SDK/OPFS/UI 仅做运行时边界搬运；native、WASM、OPFS 和浏览器 smoke 验证已通过。

wasm-port/runtime/opfs/linuxcnc-tool-table-bridge.js

@@ -0,0 +1,46 @@
+import { loadTextFile, saveTextFile } from "./file-service.js";
+import { toolTablePath } from "./path-model.js";
+
+const DEFAULT_WASM_TOOL_TABLE_PATH = "/work/tool.tbl";
+
+function requireToolTableSdk(interp) {
+  for (const method of ["writeTextFile", "readTextFile", "loadToolTable", "saveToolTable"]) {
+    if (typeof interp?.[method] !== "function") {
+      throw new Error(`interpreter SDK is missing ${method}().`);
+    }
+  }
+}
+
+function resolvePaths(machineId, options = {}) {
+  const opfsPath = options.opfsPath ?? toolTablePath(machineId, options.filename);
+  const wasmPath = options.wasmPath ?? DEFAULT_WASM_TOOL_TABLE_PATH;
+  return { opfsPath, wasmPath };
+}
+
+export async function loadMachineToolTableFromOpfs(interp, machineId, options = {}) {
+  requireToolTableSdk(interp);
+  const { opfsPath, wasmPath } = resolvePaths(machineId, options);
+  const text = await loadTextFile(opfsPath, options.storage);
+  interp.writeTextFile(wasmPath, text);
+  return {
+    opfsPath,
+    wasmPath,
+    result: interp.loadToolTable(wasmPath),
+  };
+}
+
+export async function saveMachineToolTableToOpfs(interp, machineId, options = {}) {
+  requireToolTableSdk(interp);
+  const { opfsPath, wasmPath } = resolvePaths(machineId, options);
+  const result = interp.saveToolTable(wasmPath);
+  const savedText = interp.readTextFile(wasmPath);
+
+  await saveTextFile(opfsPath, savedText, options.storage);
+
+  return {
+    opfsPath,
+    wasmPath,
+    result,
+    savedText,
+  };
+}