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/array/flatMapDepth.js

@@ -0,0 +1,26 @@
+const require_identity = require("../../function/identity.js");
+const require_iteratee = require("../util/iteratee.js");
+const require_flatten = require("./flatten.js");
+const require_map = require("./map.js");
+//#region src/compat/array/flatMapDepth.ts
+/**
+* Creates a flattened array of values by running each element through iteratee and flattening the mapped results up to depth times.
+*
+* @template T, R
+* @param collection - The array or object to iterate over.
+* @param [iteratee] - The function that produces the new array elements.
+* @param [depth=1] - The maximum recursion depth.
+* @returns A new array that has been flattened up to the specified depth.
+*
+* @example
+* flatMapDepth([1, 2, 3], n => [[n, n]], 2);
+* // => [1, 1, 2, 2, 3, 3]
+*/
+function flatMapDepth(collection, iteratee$1 = require_identity.identity, depth = 1) {
+	if (collection == null) return [];
+	const iterateeFn = require_iteratee.iteratee(iteratee$1);
+	const mapped = require_map.map(collection, iterateeFn);
+	return require_flatten.flatten(mapped, depth);
+}
+//#endregion
+exports.flatMapDepth = flatMapDepth;