[backend] fix: 修复异常处理和类型转换问题

frontend/node_modules/eslint/messages/failed-to-read-json.js

@@ -0,0 +1,11 @@
+"use strict";
+
+module.exports = function(it) {
+    const { path, message } = it;
+
+    return `
+Failed to read JSON file at ${path}:
+
+${message}
+`.trimStart();
+};