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/string/lowerFirst.js

@@ -0,0 +1,19 @@
+const require_lowerFirst = require("../../string/lowerFirst.js");
+const require_toString = require("../util/toString.js");
+//#region src/compat/string/lowerFirst.ts
+/**
+* Converts the first character of string to lower case.
+*
+* @param str - The string that is to be changed
+* @returns The converted string.
+*
+* @example
+* const convertedStr1 = lowerCase('fred') // returns 'fred'
+* const convertedStr2 = lowerCase('Fred') // returns 'fred'
+* const convertedStr3 = lowerCase('FRED') // returns 'fRED'
+*/
+function lowerFirst(str) {
+	return require_lowerFirst.lowerFirst(require_toString.toString(str));
+}
+//#endregion
+exports.lowerFirst = lowerFirst;