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/util/toInteger.mjs

@@ -0,0 +1,26 @@
+import { toFinite } from "./toFinite.mjs";
+//#region src/compat/util/toInteger.ts
+/**
+* Converts `value` to an integer.
+*
+* This function first converts `value` to a finite number. If the result has any decimal places,
+* they are removed by rounding down to the nearest whole number.
+*
+* @param value - The value to convert.
+* @returns Returns the number.
+*
+* @example
+* toInteger(3.2); // => 3
+* toInteger(Number.MIN_VALUE); // => 0
+* toInteger(Infinity); // => 1.7976931348623157e+308
+* toInteger('3.2'); // => 3
+* toInteger(Symbol.iterator); // => 0
+* toInteger(NaN); // => 0
+*/
+function toInteger(value) {
+	const finite = toFinite(value);
+	const remainder = finite % 1;
+	return remainder ? finite - remainder : finite;
+}
+//#endregion
+export { toInteger };