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/sdk/README.md

@@ -40,5 +40,7 @@ vendored LinuxCNC RS274NGC sources and exposes:
 - `runFileWithIni(path, iniPath)`
 - `restoreParameters(path)`
 - `saveParameters(path, values)`
+- `loadToolTable(path)`
+- `saveToolTable(path)`
 - `writeTextFile(path, text)`
 - `readTextFile(path)`

wasm-port/runtime/sdk/src/linuxcnc-interp.js

@@ -84,5 +84,13 @@ export async function createLinuxCncInterpSdk(moduleOptions = {}) {
         .join("\n");
       return callStringResult(mod, "lcinterp_save_parameters", path, assignments);
     },
+
+    loadToolTable(path) {
+      return callStringResult(mod, "lcinterp_load_tool_table", path);
+    },
+
+    saveToolTable(path) {
+      return callStringResult(mod, "lcinterp_save_tool_table", path);
+    },
   };
 }