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/array/shuffle.d.mts

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+//#region src/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 arr - The array to shuffle.
+ * @returns A new array with its elements shuffled in random order.
+ *
+ * @example
+ * const array = [1, 2, 3, 4, 5];
+ * const shuffledArray = shuffle(array);
+ * // shuffledArray will be a new array with elements of array in random order, e.g., [3, 1, 4, 5, 2]
+ */
+declare function shuffle<T>(arr: readonly T[]): T[];
+//#endregion
+export { shuffle };