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/object/pick.d.ts

@@ -0,0 +1,19 @@
+//#region src/fp/object/pick.d.ts
+/**
+ * Creates a function that builds a new object containing only the given `keys`
+ * from the input object. Keys that are absent on the input are skipped. Use it
+ * with {@link pipe}.
+ *
+ * @template T - The type of the input object.
+ * @template K - The union of keys to pick.
+ * @param keys - The keys to copy into the new object.
+ * @returns A function that maps an object `T` to `Pick<T, K>`.
+ *
+ * @example
+ * import { pipe, pick } from 'es-toolkit/fp';
+ *
+ * pipe({ a: 1, b: 2, c: 3 }, pick(['a', 'c'])); // => { a: 1, c: 3 }
+ */
+declare function pick<T extends Record<string, any>, K extends keyof T>(keys: readonly K[]): (obj: T) => Pick<T, K>;
+//#endregion
+export { pick };