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/function/asyncNoop.mjs

@@ -0,0 +1,13 @@
+//#region src/function/asyncNoop.ts
+/**
+* An asynchronous no-operation function that does nothing.
+* This can be used as a placeholder or default function.
+*
+* @example
+* asyncNoop(); // Does nothing
+*
+* @returns This function returns a Promise that resolves to undefined.
+*/
+async function asyncNoop() {}
+//#endregion
+export { asyncNoop };