routie dev init since i didn't adhere to any proper guidance up until now

frontend/node_modules/eslint-plugin-unicorn/rules/no-unreadable-iife.js

@@ -0,0 +1,41 @@
+import {isParenthesized, getParenthesizedRange, toLocation} from './utils/index.js';
+
+const MESSAGE_ID_ERROR = 'no-unreadable-iife';
+const messages = {
+	[MESSAGE_ID_ERROR]: 'IIFE with parenthesized arrow function body is considered unreadable.',
+};
+
+/** @param {import('eslint').Rule.RuleContext} context */
+const create = context => {
+	context.on('CallExpression', callExpression => {
+		if (
+			callExpression.callee.type !== 'ArrowFunctionExpression'
+			|| callExpression.callee.body.type === 'BlockStatement'
+			|| !isParenthesized(callExpression.callee.body, context)
+		) {
+			return;
+		}
+
+		return {
+			node: callExpression,
+			loc: toLocation(getParenthesizedRange(callExpression.callee.body, context), context),
+			messageId: MESSAGE_ID_ERROR,
+		};
+	});
+};
+
+/** @type {import('eslint').Rule.RuleModule} */
+const config = {
+	create,
+	meta: {
+		type: 'suggestion',
+		docs: {
+			description: 'Disallow unreadable IIFEs.',
+			recommended: 'unopinionated',
+		},
+		hasSuggestions: false,
+		messages,
+	},
+};
+
+export default config;