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/at.mjs

@@ -0,0 +1,25 @@
+import { at as at$1 } from "../../array/at.mjs";
+//#region src/fp/array/at.ts
+/**
+* Creates a function that retrieves elements from the piped array at the specified indices.
+*
+* Negative indices count back from the end of the array, matching the main {@link at}
+* implementation. Use the returned function with {@link pipe}.
+*
+* @template T - The type of elements in the array.
+* @param indices - The indices of the elements to retrieve from the piped array.
+* @returns A function that maps a readonly array to a new array of selected values.
+*
+* @example
+* import { at, pipe } from 'es-toolkit/fp';
+*
+* pipe([10, 20, 30, 40], at([1, -1]));
+* // => [20, 40]
+*/
+function at(indices) {
+	return function(array) {
+		return at$1(array, indices);
+	};
+}
+//#endregion
+export { at };