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

frontend/node_modules/eslint-plugin-unicorn/rules/no-useless-switch-case.js

@@ -0,0 +1,59 @@
+import {isEmptyNode} from './ast/index.js';
+import getSwitchCaseHeadLocation from './utils/get-switch-case-head-location.js';
+
+const MESSAGE_ID_ERROR = 'no-useless-switch-case/error';
+const MESSAGE_ID_SUGGESTION = 'no-useless-switch-case/suggestion';
+const messages = {
+	[MESSAGE_ID_ERROR]: 'Useless case in switch statement.',
+	[MESSAGE_ID_SUGGESTION]: 'Remove this case.',
+};
+
+const isEmptySwitchCase = node => node.consequent.every(node => isEmptyNode(node));
+
+/** @param {import('eslint').Rule.RuleContext} context */
+const create = context => {
+	context.on('SwitchStatement', function * (switchStatement) {
+		const {cases} = switchStatement;
+
+		// We only check cases where the last case is the `default` case
+		if (cases.length < 2 || cases.at(-1).test !== null) {
+			return;
+		}
+
+		for (let index = cases.length - 2; index >= 0; index--) {
+			const node = cases[index];
+			if (!isEmptySwitchCase(node)) {
+				break;
+			}
+
+			yield {
+				node,
+				loc: getSwitchCaseHeadLocation(node, context),
+				messageId: MESSAGE_ID_ERROR,
+				suggest: [
+					{
+						messageId: MESSAGE_ID_SUGGESTION,
+						/** @param {import('eslint').Rule.RuleFixer} fixer */
+						fix: fixer => fixer.remove(node),
+					},
+				],
+			};
+		}
+	});
+};
+
+/** @type {import('eslint').Rule.RuleModule} */
+const config = {
+	create,
+	meta: {
+		type: 'suggestion',
+		docs: {
+			description: 'Disallow useless case in switch statements.',
+			recommended: 'unopinionated',
+		},
+		hasSuggestions: true,
+		messages,
+	},
+};
+
+export default config;