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/dropRightWhile.d.ts

@@ -0,0 +1,20 @@
+//#region src/fp/array/dropRightWhile.d.ts
+/**
+ * Creates a function that drops trailing values while a predicate returns true.
+ *
+ * The predicate is evaluated from right to left and receives the value, index, and full
+ * input array. Use the returned function with {@link pipe}.
+ *
+ * @template T - The type of elements in the array.
+ * @param predicate - Called with each value, index, and array while dropping from the end.
+ * @returns A function that maps a readonly array to the remaining prefix.
+ *
+ * @example
+ * import { dropRightWhile, pipe } from 'es-toolkit/fp';
+ *
+ * pipe([1, 2, 3, 4], dropRightWhile(value => value > 2));
+ * // => [1, 2]
+ */
+declare function dropRightWhile<T>(predicate: (item: T, index: number, array: readonly T[]) => boolean): (array: readonly T[]) => T[];
+//#endregion
+export { dropRightWhile };