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/uniqBy.js

@@ -0,0 +1,40 @@
+//#region src/array/uniqBy.ts
+/**
+* Returns a new array containing only the unique elements from the original array,
+* based on the values returned by the mapper function.
+*
+* When duplicates are found, the first occurrence is kept and the rest are discarded.
+*
+* @template T - The type of elements in the array.
+* @template U - The type of mapped elements.
+* @param arr - The array to process.
+* @param mapper - The function used to convert the array elements.
+* @returns A new array containing only the unique elements from the original array, based on the values returned by the mapper function.
+*
+* @example
+* ```ts
+* uniqBy([1.2, 1.5, 2.1, 3.2, 5.7, 5.3, 7.19], Math.floor);
+* // [1.2, 2.1, 3.2, 5.7, 7.19]
+* ```
+*
+* @example
+* const array = [
+*   { category: 'fruit', name: 'apple' },
+*   { category: 'fruit', name: 'banana' },
+*   { category: 'vegetable', name: 'carrot' },
+* ];
+* uniqBy(array, item => item.category).length
+* // 2
+* ```
+*/
+function uniqBy(arr, mapper) {
+	const map = /* @__PURE__ */ new Map();
+	for (let i = 0; i < arr.length; i++) {
+		const item = arr[i];
+		const key = mapper(item, i, arr);
+		if (!map.has(key)) map.set(key, item);
+	}
+	return Array.from(map.values());
+}
+//#endregion
+exports.uniqBy = uniqBy;