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/attempt.d.ts

@@ -0,0 +1,34 @@
+//#region src/compat/function/attempt.d.ts
+/**
+ * Attempts to execute a function with the provided arguments.
+ * If the function throws an error, it catches the error and returns it.
+ * If the caught error is not an instance of Error, it wraps it in a new Error.
+ *
+ * @param func - The function to be executed.
+ * @param args - The arguments to pass to the function.
+ * @returns The return value of the function if successful, or an Error if an exception is thrown.
+ *
+ * @template R - The type of the function return value.
+ *
+ * @example
+ * // Example 1: Successful execution
+ * const result = attempt((x, y) => x + y, 2, 3);
+ * console.log(result); // Output: 5
+ *
+ * @example
+ * // Example 2: Function throws an error
+ * const errorResult = attempt(() => {
+ *   throw new Error("Something went wrong");
+ * });
+ * console.log(errorResult); // Output: Error: Something went wrong
+ *
+ * @example
+ * // Example 3: Non-Error thrown
+ * const nonErrorResult = attempt(() => {
+ *   throw "This is a string error";
+ * });
+ * console.log(nonErrorResult); // Output: Error: This is a string error
+ */
+declare function attempt<R>(func: (...args: any[]) => R, ...args: any[]): R | Error;
+//#endregion
+export { attempt };