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

frontend/node_modules/eslint-plugin-perfectionist/dist/utils/compare/compute-ordered-value.js

@@ -0,0 +1,23 @@
+import { UnreachableCaseError } from '../unreachable-case-error.js'
+/**
+ * Adjusts a comparison result value based on the specified sort order.
+ *
+ * For ascending order, returns the value unchanged. For descending order,
+ * negates the value to reverse the sort direction.
+ *
+ * @param value - The comparison result value to adjust.
+ * @param order - The order direction ('asc' or 'desc').
+ * @returns The adjusted comparison value.
+ */
+function computeOrderedValue(value, order) {
+  switch (order) {
+    case 'desc':
+      return -value
+    case 'asc':
+      return value
+    /* v8 ignore next 2 -- @preserve Exhaustive guard. */
+    default:
+      throw new UnreachableCaseError(order)
+  }
+}
+export { computeOrderedValue }