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/util/toArray.mjs

@@ -0,0 +1,23 @@
+import { isArrayLike } from "../predicate/isArrayLike.mjs";
+import { isMap } from "../predicate/isMap.mjs";
+//#region src/compat/util/toArray.ts
+/**
+* Converts a value to an array.
+*
+* @param value - The value to convert.
+* @returns Returns the converted array.
+*
+* @example
+* toArray({ 'a': 1, 'b': 2 }) // => returns [1,2]
+* toArray('abc') // => returns ['a', 'b', 'c']
+* toArray(1) // => returns []
+* toArray(null) // => returns []
+*/
+function toArray(value) {
+	if (value == null) return [];
+	if (isArrayLike(value) || isMap(value)) return Array.from(value);
+	if (typeof value === "object") return Object.values(value);
+	return [];
+}
+//#endregion
+export { toArray };