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/lte.mjs

@@ -0,0 +1,20 @@
+import { toNumber } from "./toNumber.mjs";
+//#region src/compat/util/lte.ts
+/**
+* Checks if value is less than or equal to other.
+*
+* @param value The value to compare.
+* @param other The other value to compare.
+* @returns Returns `true` if value is less than or equal to other, else `false`.
+*
+* @example
+* lte(1, 3); // => true
+* lte(3, 3); // => true
+* lte(3, 1); // => false
+*/
+function lte(value, other) {
+	if (typeof value === "string" && typeof other === "string") return value <= other;
+	return toNumber(value) <= toNumber(other);
+}
+//#endregion
+export { lte };