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/map/forEach.mjs

@@ -0,0 +1,31 @@
+//#region src/map/forEach.ts
+/**
+* Executes a provided function once for each entry in a Map.
+*
+* This function iterates through all entries of the Map and executes the callback function
+* for each entry. The callback receives the value, key, and the Map itself as arguments.
+*
+* @template K - The type of keys in the Map.
+* @template V - The type of values in the Map.
+* @param map - The Map to iterate over.
+* @param callback - A function to execute for each entry.
+*
+* @example
+* const map = new Map([
+*   ['a', 1],
+*   ['b', 2],
+*   ['c', 3]
+* ]);
+* forEach(map, (value, key) => {
+*   console.log(`${key}: ${value}`);
+* });
+* // Output:
+* // a: 1
+* // b: 2
+* // c: 3
+*/
+function forEach(map, callback) {
+	for (const [key, value] of map) callback(value, key, map);
+}
+//#endregion
+export { forEach };