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

frontend/node_modules/eslint-plugin-unicorn/rules/prefer-optional-catch-binding.js

@@ -0,0 +1,77 @@
+import {isOpeningParenToken, isClosingParenToken} from '@eslint-community/eslint-utils';
+import assertToken from './utils/assert-token.js';
+
+const MESSAGE_ID_WITH_NAME = 'with-name';
+const MESSAGE_ID_WITHOUT_NAME = 'without-name';
+const messages = {
+	[MESSAGE_ID_WITH_NAME]: 'Remove unused catch binding `{{name}}`.',
+	[MESSAGE_ID_WITHOUT_NAME]: 'Remove unused catch binding.',
+};
+
+/** @param {import('eslint').Rule.RuleContext} context */
+const create = context => {
+	context.on('CatchClause', catchClause => {
+		const node = catchClause.param;
+		if (!node) {
+			return;
+		}
+
+		const {sourceCode} = context;
+		const variables = sourceCode.getDeclaredVariables(node.parent);
+
+		if (variables.some(variable => variable.references.length > 0)) {
+			return;
+		}
+
+		const {type, name, parent} = node;
+
+		return {
+			node,
+			messageId: type === 'Identifier' ? MESSAGE_ID_WITH_NAME : MESSAGE_ID_WITHOUT_NAME,
+			data: {name},
+			* fix(fixer) {
+				const tokenBefore = sourceCode.getTokenBefore(node);
+				assertToken(tokenBefore, {
+					test: isOpeningParenToken,
+					expected: '(',
+					ruleId: 'prefer-optional-catch-binding',
+				});
+
+				const tokenAfter = sourceCode.getTokenAfter(node);
+				assertToken(tokenAfter, {
+					test: isClosingParenToken,
+					expected: ')',
+					ruleId: 'prefer-optional-catch-binding',
+				});
+
+				yield fixer.remove(tokenBefore);
+				yield fixer.remove(node);
+				yield fixer.remove(tokenAfter);
+
+				const [, endOfClosingParenthesis] = sourceCode.getRange(tokenAfter);
+				const [startOfCatchClauseBody] = sourceCode.getRange(parent.body);
+				const text = sourceCode.text.slice(endOfClosingParenthesis, startOfCatchClauseBody);
+				const leadingSpacesLength = text.length - text.trimStart().length;
+				if (leadingSpacesLength !== 0) {
+					yield fixer.removeRange([endOfClosingParenthesis, endOfClosingParenthesis + leadingSpacesLength]);
+				}
+			},
+		};
+	});
+};
+
+/** @type {import('eslint').Rule.RuleModule} */
+const config = {
+	create,
+	meta: {
+		type: 'suggestion',
+		docs: {
+			description: 'Prefer omitting the `catch` binding parameter.',
+			recommended: 'unopinionated',
+		},
+		fixable: 'code',
+		messages,
+	},
+};
+
+export default config;