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/differenceBy.mjs

@@ -0,0 +1,32 @@
+import { differenceBy as differenceBy$1 } from "../../array/differenceBy.mjs";
+import { combineEagerAndLazyFunctions, createLazyFunction } from "../_internal/lazy.mjs";
+//#region src/fp/array/differenceBy.ts
+/**
+* Creates a function that returns values whose mapped identity is absent from another array.
+*
+* The mapper is applied to values from both arrays. The returned function is
+* lazy-capable inside {@link pipe}.
+*
+* @template T - The type of elements in the piped array.
+* @template U - The type of elements in the configured array.
+* @param secondArray - Values to exclude from the piped array after mapping.
+* @param mapper - Maps values from both arrays to comparison keys.
+* @returns A function that maps the piped array to its mapped difference.
+*
+* @example
+* import { differenceBy, pipe } from 'es-toolkit/fp';
+*
+* pipe([{ id: 1 }, { id: 2 }], differenceBy([2], value => typeof value === 'number' ? value : value.id));
+* // => [{ id: 1 }]
+*/
+function differenceBy(secondArray, mapper) {
+	const mappedSecondSet = new Set(secondArray.map((item) => mapper(item)));
+	function differenceByEager(array) {
+		return differenceBy$1(array, secondArray, mapper);
+	}
+	return combineEagerAndLazyFunctions(differenceByEager, createLazyFunction((value, _index, emit) => {
+		if (!mappedSecondSet.has(mapper(value))) emit(value);
+	}));
+}
+//#endregion
+export { differenceBy };