[backend] fix: 修复异常处理和类型转换问题

frontend/node_modules/@humanwhocodes/module-importer/dist/module-importer.d.cts

@@ -0,0 +1,27 @@
+export class ModuleImporter {
+    /**
+     * Creates a new instance.
+     * @param {string} [cwd] The current working directory to resolve from.
+     */
+    constructor(cwd?: string);
+    /**
+     * The base directory from which paths should be resolved.
+     * @type {string}
+     */
+    cwd: string;
+    /**
+     * Resolves a module based on its name or location.
+     * @param {string} specifier Either an npm package name or
+     *      relative file path.
+     * @returns {string|undefined} The location of the import.
+     * @throws {Error} If specifier cannot be located.
+     */
+    resolve(specifier: string): string | undefined;
+    /**
+     * Imports a module based on its name or location.
+     * @param {string} specifier Either an npm package name or
+     *      relative file path.
+     * @returns {Promise<object>} The module's object.
+     */
+    import(specifier: string): Promise<object>;
+}

frontend/node_modules/@humanwhocodes/module-importer/dist/module-importer.d.ts

@@ -0,0 +1,2 @@
+export { ModuleImporter };
+import { ModuleImporter } from "./module-importer.cjs";

frontend/node_modules/@humanwhocodes/module-importer/dist/module-importer.js

@@ -0,0 +1,18 @@
+import { createRequire } from 'module';
+import { fileURLToPath } from 'url';
+import { dirname } from 'path';
+
+/**
+ * @fileoverview Universal module importer
+ */
+
+//-----------------------------------------------------------------------------
+// Helpers
+//-----------------------------------------------------------------------------
+
+const __filename = fileURLToPath(import.meta.url);
+const __dirname = dirname(__filename);
+const require = createRequire(__dirname + "/");
+const { ModuleImporter } = require("./module-importer.cjs");
+
+export { ModuleImporter };