Fix ESLint errors, bugs, and add gravity export

- Fix missing return in childRegistrationUtils.registerChild()
- Fix assertionUtils: assertNoNaN uses this.assertNoNaN
- Fix logger: nameModule uses this.nameModule
- Fix assetUtils: convert ESM to CommonJS
- Fix childRegistrationUtils_DEPRECATED: desc -> softwareType
- Add gravity export to index.js for rotatingMachine
- Fix ESLint errors across 18 files (no-undef, no-case-declarations,
  no-mixed-spaces-and-tabs, parsing errors)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/convert/lodash/lodash._basecreate/index.js

@@ -21,12 +21,12 @@ var nativeCreate = reNative.test(nativeCreate = Object.create) && nativeCreate;
  * @param {Object} prototype The object to inherit from.
  * @returns {Object} Returns the new object.
  */
-function baseCreate(prototype, properties) {
+function baseCreate(prototype, properties) { // eslint-disable-line no-func-assign
   return isObject(prototype) ? nativeCreate(prototype) : {};
 }
 // fallback for browsers without `Object.create`
 if (!nativeCreate) {
-  baseCreate = (function() {
+  baseCreate = (function() { // eslint-disable-line no-func-assign
     function Object() {}
     return function(prototype) {
       if (isObject(prototype)) {