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/shuffle.d.mts

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+//#region src/compat/array/shuffle.d.ts
+/**
+ * Randomizes the order of elements in an `array` using the Fisher-Yates algorithm.
+ *
+ * This function takes an `array` and returns a new `array` with its elements shuffled in a random order.
+ *
+ * @template T - The type of elements in the `array`.
+ * @param array - The `array` to shuffle.
+ * @returns A new `array` with its elements shuffled in random order.
+ */
+declare function shuffle<T>(array: ArrayLike<T> | null | undefined): T[];
+/**
+ * Randomizes the order of elements in an `object` using the Fisher-Yates algorithm.
+ *
+ * This function takes an `object` and returns a new `object` with its values shuffled in a random order.
+ *
+ * @template T - The type of elements in the `object`.
+ * @param object - The `object` to shuffle.
+ * @returns A new `Array` with the values of the `object` shuffled in a random order.
+ */
+declare function shuffle<T extends object>(object: T | null | undefined): Array<T[keyof T]>;
+//#endregion
+export { shuffle };