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/function/flip.js

@@ -0,0 +1,24 @@
+//#region src/compat/function/flip.ts
+/**
+* Reverses the order of arguments for a given function.
+*
+* @template F - The type of the function being flipped.
+* @param func - The function whose arguments will be reversed.
+* @returns A new function that takes the
+* reversed arguments and returns the result of calling `func`.
+*
+* @example
+* function fn(a: string, b: string, c: string, d: string) {
+*   return [a, b, c, d];
+* }
+*
+* const flipped = flip(fn);
+* flipped('a', 'b', 'c', 'd'); // => ['d', 'c', 'b', 'a']
+*/
+function flip(func) {
+	return function(...args) {
+		return func.apply(this, args.reverse());
+	};
+}
+//#endregion
+exports.flip = flip;