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/function/after.d.mts

@@ -0,0 +1,32 @@
+//#region src/function/after.d.ts
+/**
+ * Creates a function that only executes starting from the `n`-th call.
+ * The provided function will be invoked starting from the `n`-th call.
+ *
+ * This is particularly useful for scenarios involving events or asynchronous operations
+ * where an action should occur only after a certain number of invocations.
+ *
+ * @template F - The type of the function to be invoked.
+ * @param n - The number of calls required for `func` to execute.
+ * @param func - The function to be invoked.
+ * @returns A new function that:
+ * - Tracks the number of calls.
+ * - Invokes `func` starting from the `n`-th call.
+ * - Returns `undefined` if fewer than `n` calls have been made.
+ * @throws {Error} - Throws an error if `n` is negative.
+ * @example
+ *
+ * const afterFn = after(3, () => {
+ *  console.log("called")
+ * });
+ *
+ * // Will not log anything.
+ * afterFn()
+ * // Will not log anything.
+ * afterFn()
+ * // Will log 'called'.
+ * afterFn()
+ */
+declare function after<F extends (...args: any[]) => any>(n: number, func: F): (...args: Parameters<F>) => ReturnType<F> | undefined;
+//#endregion
+export { after };