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/tests/opfs/node/verify_file_service.mjs

@@ -197,6 +197,22 @@ const bridgeInterp = {
   },
 };
 
+const bridgeIniSdk = {
+  writeTextFile(path, text) {
+    bridgeFiles.set(`ini:${path}`, text);
+  },
+  getBool(path, section, tag) {
+    if (
+      path === "/work/ini-derived-session.ini" &&
+      section === "EMCIO" &&
+      tag === "RANDOM_TOOLCHANGER"
+    ) {
+      return true;
+    }
+    return null;
+  },
+};
+
 const restoredParameters = await restoreMachineParametersFromOpfs(
   bridgeInterp,
   "xyzab-tdr",
@@ -314,6 +330,26 @@ assert.equal(
   "tooldata_load=0\nload_tool_path=/work/random-session-tool.tbl\nrandom_toolchanger=1\n",
 );
 
+const loadedIniDerivedRandomSession = await loadMachineSessionFromOpfs(
+  bridgeInterp,
+  "xyzab-tdr",
+  {
+    storage,
+    iniSdk: bridgeIniSdk,
+    iniWasmPath: "/work/ini-derived-session.ini",
+    parameterWasmPath: "/work/ini-derived-session.var",
+    toolTableWasmPath: "/work/ini-derived-session-tool.tbl",
+  },
+);
+assert.equal(
+  bridgeFiles.get("ini:/work/ini-derived-session.ini"),
+  "[EMC]\nMACHINE = xyzab-tdr\n",
+);
+assert.equal(
+  loadedIniDerivedRandomSession.toolTable.result,
+  "tooldata_load=0\nload_tool_path=/work/ini-derived-session-tool.tbl\nrandom_toolchanger=1\n",
+);
+
 await assert.rejects(
   () => loadTextFile("linuxcnc/machines/missing.ini", storage),
   /missing file/,