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/promise/allKeyed.js

@@ -0,0 +1,37 @@
+//#region src/promise/allKeyed.ts
+/**
+* Resolves an object of promises concurrently, returning an object with the same keys and resolved values.
+*
+* Similar to `Promise.all`, but accepts an object of promises instead of an array,
+* preserving the keys in the result. This makes it easy to destructure the resolved values
+* by name instead of relying on positional indices.
+*
+* Based on the [TC39 `Promise.allKeyed` proposal](https://github.com/tc39/proposal-await-dictionary).
+*
+* @template T - A record type where each value is a promise or a value.
+* @param tasks - An object whose values are promises (or plain values) to resolve concurrently.
+* @returns>} A promise that resolves to an object with the same keys and resolved values.
+*
+* @example
+* const { user, posts } = await allKeyed({
+*   user: fetchUser(),
+*   posts: fetchPosts(),
+* });
+*
+* @example
+* // Plain values are also supported
+* const result = await allKeyed({
+*   a: Promise.resolve(1),
+*   b: 2,
+* });
+* // { a: 1, b: 2 }
+*/
+async function allKeyed(tasks) {
+	const keys = Object.keys(tasks);
+	const values = await Promise.all(keys.map((key) => tasks[key]));
+	const result = {};
+	for (let i = 0; i < keys.length; i++) result[keys[i]] = values[i];
+	return result;
+}
+//#endregion
+exports.allKeyed = allKeyed;