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/object/findLastKey.mjs

@@ -0,0 +1,23 @@
+import { isObject } from "../predicate/isObject.mjs";
+import { iteratee } from "../util/iteratee.mjs";
+import { identity } from "../function/identity.mjs";
+//#region src/compat/object/findLastKey.ts
+/**
+* Finds the key of the last element that matches the given predicate.
+*
+* This function determines the type of the predicate and delegates the search
+* to the appropriate helper function. It supports predicates as functions, objects,
+* arrays, or strings.
+*
+* @template T - The type of the object.
+* @param obj - The object to inspect.
+* @param predicate - The predicate to match.
+* @returns Returns the key of the matched element, else `undefined`.
+*/
+function findLastKey(obj, predicate) {
+	if (!isObject(obj)) return;
+	const iteratee$1 = iteratee(predicate ?? identity);
+	return Object.keys(obj).findLast((key) => iteratee$1(obj[key], key, obj));
+}
+//#endregion
+export { findLastKey };