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

frontend/node_modules/eslint-plugin-perfectionist/dist/utils/convert-boolean-to-sign.d.ts

@@ -0,0 +1,27 @@
+/**
+ * Converts a boolean value to a sort direction multiplier.
+ *
+ * Used in sorting functions to convert boolean comparisons into numeric values
+ * suitable for array sort callbacks. This allows for concise expression of sort
+ * direction logic.
+ *
+ * @example
+ *
+ * ```ts
+ * // In ascending sort
+ * convertBooleanToSign(true) // Returns: 1
+ * convertBooleanToSign(false) // Returns: -1
+ * ```
+ *
+ * @example
+ *
+ * ```ts
+ * // Usage in sorting
+ * const sortMultiplier = convertBooleanToSign(order === 'asc')
+ * return sortMultiplier * (a - b)
+ * ```
+ *
+ * @param value - Boolean value to convert to a sign.
+ * @returns 1 if value is true, -1 if value is false.
+ */
+export declare function convertBooleanToSign(value: boolean): -1 | 1