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/unary.js

@@ -0,0 +1,21 @@
+const require_ary = require("./ary.js");
+//#region src/compat/function/unary.ts
+/**
+* Creates a function that accepts up to one argument, ignoring any additional arguments.
+*
+* @template F - The type of the function.
+* @param func - The function to cap arguments for.
+* @returns Returns the new capped function.
+*
+* @example
+* function fn(a, b, c) {
+*   console.log(arguments);
+* }
+*
+* unary(fn)(1, 2, 3); // [Arguments] { '0': 1 }
+*/
+function unary(func) {
+	return require_ary.ary(func, 1);
+}
+//#endregion
+exports.unary = unary;