继续按 align-linuxcnc 约束：闭合 switchkins 构建预检

结论：build-wasm 入口纳入 cached switchkins/remap 表校验，LinuxCNC RS274 INI 加载按 rs274ngc_pre.cc 保留真实 ini_load 路径，Node/browser generated switchkins smoke 跳过会触发 REMAP 依赖加载的 INI_FILE_NAME 别名；native/source-link/表检查均通过。

test-web-wasm-node-smoke.cjs

@@ -107,6 +107,17 @@ function near(actual, expected) {
 
 let completedSteps = 0;
 
+function isIniFileNameField(field) {
+  return field === "ini" ||
+         field === "iniFile" ||
+         field === "inifile" ||
+         field === "iniFileName" ||
+         field === "inifilename" ||
+         field === "ini_file" ||
+         field === "ini_file_name" ||
+         field === "INI_FILE_NAME";
+}
+
 function loadSwitchkinsCases() {
   const configCases = JSON.parse(
     fs.readFileSync(path.join(wasmDir, "linuxcnc_switchkins_remap_config_cases.json"), "utf8"),
@@ -126,7 +137,7 @@ function loadSwitchkinsCases() {
       throw new Error(`invalid generated LinuxCNC switchkins config case at index ${index}`);
     }
   }
-  return configCases.map((configCase) => ({
+  return configCases.filter((configCase) => !isIniFileNameField(configCase.field)).map((configCase) => ({
     label: `${configCase.field}=${configCase.value}`,
     config: { backend: "linuxcnc-rs274", [configCase.field]: configCase.value },
     program: configCase.m430 >= 0 ? "M428\nM429\nM430\n" : "M428\nM429\n",