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/compat/array/head.js

@@ -0,0 +1,25 @@
+const require_head = require("../../array/head.js");
+const require_toArray = require("../_internal/toArray.js");
+const require_isArrayLike = require("../predicate/isArrayLike.js");
+//#region src/compat/array/head.ts
+/**
+* Returns the first element of an array or `undefined` if the array is empty.
+*
+* This function takes an array and returns the first element of the array.
+* If the array is empty, the function returns `undefined`.
+*
+* @template T - The type of elements in the array.
+* @param arr - The array from which to get the first element.
+* @returns The first element of the array, or `undefined` if the array is empty.
+*
+* @example
+* const emptyArr: number[] = [];
+* const noElement = head(emptyArr);
+* // noElement will be undefined
+*/
+function head(arr) {
+	if (!require_isArrayLike.isArrayLike(arr)) return;
+	return require_head.head(require_toArray.toArray(arr));
+}
+//#endregion
+exports.head = head;