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/spread.d.ts

@@ -0,0 +1,48 @@
+//#region src/compat/function/spread.d.ts
+/**
+ * Creates a new function that spreads elements of an array argument into individual arguments
+ * for the original function. The array argument is positioned based on the `argsIndex` parameter.
+ *
+ * @template F - A function type with any number of parameters and any return type.
+ * @param func - The function to be transformed. It can be any function with any number of arguments.
+ * @param [argsIndex=0] - The index where the array argument is positioned among the other arguments.
+ *   If `argsIndex` is negative or `NaN`, it defaults to `0`. If it's a fractional number, it is rounded to the nearest integer.
+ * @returns A new function that takes multiple arguments, including an array of arguments at the specified `argsIndex`,
+ *   and returns the result of calling the original function with those arguments.
+ *
+ * @example
+ * function add(a, b) {
+ *   return a + b;
+ * }
+ *
+ * const spreadAdd = spread(add);
+ * console.log(spreadAdd([1, 2])); // Output: 3
+ *
+ * @example
+ * // Example function to spread arguments over
+ * function add(a, b) {
+ *   return a + b;
+ * }
+ *
+ * // Create a new function that uses `spread` to combine arguments
+ * const spreadAdd = spread(add, 1);
+ *
+ * // Calling `spreadAdd` with an array as the second argument
+ * console.log(spreadAdd(1, [2])); // Output: 3
+ *
+ * @example
+ * // Function with default arguments
+ * function greet(name, greeting = 'Hello') {
+ *   return `${greeting}, ${name}!`;
+ * }
+ *
+ * // Create a new function that uses `spread` to position the argument array at index 0
+ * const spreadGreet = spread(greet, 0);
+ *
+ * // Calling `spreadGreet` with an array of arguments
+ * console.log(spreadGreet(['Alice'])); // Output: Hello, Alice!
+ * console.log(spreadGreet(['Bob', 'Hi'])); // Output: Hi, Bob!
+ */
+declare function spread<R>(func: (...args: any[]) => R, argsIndex?: number): (...args: any[]) => R;
+//#endregion
+export { spread };