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/object/fromPairs.d.ts

@@ -0,0 +1,29 @@
+//#region src/compat/object/fromPairs.d.ts
+type PropertyName = string | number | symbol;
+/**
+ * Converts an array of key-value pairs into an object.
+ *
+ * @template T - The type of the values.
+ * @param pairs - An array of key-value pairs.
+ * @returns An object where keys are strings and values are of type T.
+ *
+ * @example
+ * const pairs = [['a', 1], ['b', 2]];
+ * const result = fromPairs(pairs);
+ * // => { a: 1, b: 2 }
+ */
+declare function fromPairs<T>(pairs: ArrayLike<[PropertyName, T]> | null | undefined): Record<string, T>;
+/**
+ * Converts an array of key-value pairs into an object.
+ *
+ * @param pairs - An array of key-value pairs.
+ * @returns An object where keys are strings and values can be any type.
+ *
+ * @example
+ * const pairs = [['a', 1], ['b', 'hello']];
+ * const result = fromPairs(pairs);
+ * // => { a: 1, b: 'hello' }
+ */
+declare function fromPairs(pairs: ArrayLike<any[]> | null | undefined): Record<string, any>;
+//#endregion
+export { fromPairs };