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/object/pick.js

@@ -0,0 +1,28 @@
+//#region src/object/pick.ts
+/**
+* Creates a new object composed of the picked object properties.
+*
+* This function takes an object and an array of keys, and returns a new object that
+* includes only the properties corresponding to the specified keys.
+*
+* @template T - The type of object.
+* @template K - The type of keys in object.
+* @param obj - The object to pick keys from.
+* @param keys - An array of keys to be picked from the object.
+* @returns A new object with the specified keys picked.
+*
+* @example
+* const obj = { a: 1, b: 2, c: 3 };
+* const result = pick(obj, ['a', 'c']);
+* // result will be { a: 1, c: 3 }
+*/
+function pick(obj, keys) {
+	const result = {};
+	for (let i = 0; i < keys.length; i++) {
+		const key = keys[i];
+		if (Object.hasOwn(obj, key)) result[key] = obj[key];
+	}
+	return result;
+}
+//#endregion
+exports.pick = pick;