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/function/throttle.js

@@ -0,0 +1,42 @@
+const require_debounce = require("./debounce.js");
+//#region src/compat/function/throttle.ts
+/**
+* Creates a throttled function that only invokes the provided function at most once
+* per every `throttleMs` milliseconds. Subsequent calls to the throttled function
+* within the wait time will not trigger the execution of the original function.
+*
+* @template F - The type of function.
+* @param func - The function to throttle.
+* @param throttleMs - The number of milliseconds to throttle executions to.
+* @param options - The options object
+* @param options.signal - An optional AbortSignal to cancel the throttled function.
+* @param options.leading - If `true`, the function will be invoked on the leading edge of the timeout.
+* @param options.trailing - If `true`, the function will be invoked on the trailing edge of the timeout.
+* @returns A new throttled function that accepts the same parameters as the original function.
+*
+* @example
+* const throttledFunction = throttle(() => {
+*   console.log('Function executed');
+* }, 1000);
+*
+* // Will log 'Function executed' immediately
+* throttledFunction();
+*
+* // Will not log anything as it is within the throttle time
+* throttledFunction();
+*
+* // After 1 second
+* setTimeout(() => {
+*   throttledFunction(); // Will log 'Function executed'
+* }, 1000);
+*/
+function throttle(func, throttleMs = 0, options = {}) {
+	const { leading = true, trailing = true } = options;
+	return require_debounce.debounce(func, throttleMs, {
+		leading,
+		maxWait: throttleMs,
+		trailing
+	});
+}
+//#endregion
+exports.throttle = throttle;