Add settings page for managing forecasting API key and URL via UI

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/node_modules/es-toolkit/dist/fp/array/unzipWith.d.ts

@@ -0,0 +1,21 @@
+//#region src/fp/array/unzipWith.d.ts
+/**
+ * Creates a function that unzips grouped arrays and combines values by position.
+ *
+ * Values at the same position are passed to iteratee, and its return values form the
+ * resulting array.
+ *
+ * @template T - The element type inside each grouped array.
+ * @template R - The value returned by the iteratee.
+ * @param iteratee - Called with the values at each position.
+ * @returns A function that maps grouped arrays to combined values.
+ *
+ * @example
+ * import { pipe, unzipWith } from 'es-toolkit/fp';
+ *
+ * pipe([[1, 10], [2, 20]], unzipWith((a, b) => a + b));
+ * // => [3, 30]
+ */
+declare function unzipWith<T, R>(iteratee: (...args: T[]) => R): (target: readonly T[][]) => R[];
+//#endregion
+export { unzipWith };