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/object/propertyOf.mjs

@@ -0,0 +1,29 @@
+import { get } from "./get.mjs";
+//#region src/compat/object/propertyOf.ts
+/**
+* Creates a function that returns the value at a given path of an object.
+*
+* Unlike `property`, which creates a function bound to a specific path and allows you to query different objects,
+* `propertyOf` creates a function bound to a specific object and allows you to query different paths within that object.
+*
+* @template T - The type of object.
+* @param object - The object to query.
+* @returns Returns a new function that takes a path and retrieves the value from the object at the specified path.
+*
+* @example
+* const getValue = propertyOf({ a: { b: { c: 3 } } });
+* const result = getValue('a.b.c');
+* console.log(result); // => 3
+*
+* @example
+* const getValue = propertyOf({ a: { b: { c: 3 } } });
+* const result = getValue(['a', 'b', 'c']);
+* console.log(result); // => 3
+*/
+function propertyOf(object) {
+	return function(path) {
+		return get(object, path);
+	};
+}
+//#endregion
+export { propertyOf };