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/array/tail.d.ts

@@ -0,0 +1,27 @@
+//#region src/compat/array/tail.d.ts
+/**
+ * Gets all but the first element of array.
+ *
+ * @template T
+ * @param array - The array to query.
+ * @returns Returns the slice of array.
+ *
+ * @example
+ * tail([1, 2, 3]);
+ * // => [2, 3]
+ */
+declare function tail<T extends unknown[]>(array: readonly [unknown, ...T]): T;
+/**
+ * Gets all but the first element of array.
+ *
+ * @template T
+ * @param array - The array to query.
+ * @returns Returns the slice of array.
+ *
+ * @example
+ * tail([1, 2, 3]);
+ * // => [2, 3]
+ */
+declare function tail<T>(array: ArrayLike<T> | null | undefined): T[];
+//#endregion
+export { tail };