按规划继续工作

结论：接入 LinuxCNC iniFindBool 到 INI WASM/SDK，并让 machine-session bridge 通过 vendored INI 解析 [EMCIO]RANDOM_TOOLCHANGER 后透传给 tooldata；native、WASM、OPFS 和浏览器 smoke 验证已通过。

wasm-port/runtime/sdk/README.md

@@ -29,7 +29,8 @@ import {
 ```
 
 `createLinuxCncIniSdk()` wraps the INI parser module built from vendored
-LinuxCNC `inifile.cc`.
+LinuxCNC `inifile.cc` and exposes `getString()` plus `getBool()`. Boolean
+conversion is performed by vendored LinuxCNC `iniFindBool()`.
 
 `createLinuxCncInterpSdk()` wraps the interpreter-core module built from
 vendored LinuxCNC RS274NGC sources and exposes:

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

@@ -55,6 +55,23 @@ export async function createLinuxCncIniSdk(moduleOptions = {}) {
       }
     },
 
+    getBool(path, section, tag) {
+      const pathPtr = allocCString(mod, path);
+      const sectionPtr = allocCString(mod, section);
+      const tagPtr = allocCString(mod, tag);
+      const outPtr = mod._malloc(4);
+
+      try {
+        const rc = mod._lcini_get_bool(pathPtr, sectionPtr, tagPtr, outPtr);
+        return rc === 0 ? mod.HEAP32[outPtr >> 2] !== 0 : null;
+      } finally {
+        mod._free(pathPtr);
+        mod._free(sectionPtr);
+        mod._free(tagPtr);
+        mod._free(outPtr);
+      }
+    },
+
     getFields(path, fields) {
       return Object.fromEntries(
         Object.entries(fields).map(([name, query]) => [