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/fp/array/chunk.js

@@ -0,0 +1,24 @@
+const require_chunk = require("../../array/chunk.js");
+//#region src/fp/array/chunk.ts
+/**
+* Creates a function that splits an array into sub-arrays of length `size`. The
+* final chunk holds the remaining elements when the array cannot be divided
+* evenly. Use it with {@link pipe}.
+*
+* @template T - The type of elements in the array.
+* @param size - The length of each chunk. Must be a positive integer.
+* @returns A function that maps a `readonly T[]` to a `T[][]`.
+* @throws {Error} When `size` is not a positive integer (propagated from the underlying implementation).
+*
+* @example
+* import { pipe, chunk } from 'es-toolkit/fp';
+*
+* pipe([1, 2, 3, 4, 5], chunk(2)); // => [[1, 2], [3, 4], [5]]
+*/
+function chunk(size) {
+	return function(array) {
+		return require_chunk.chunk(array, size);
+	};
+}
+//#endregion
+exports.chunk = chunk;