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/endsWith.js

@@ -0,0 +1,25 @@
+//#region src/compat/string/endsWith.ts
+/**
+* Checks if a string contains another string at the end of the string.
+*
+* Checks if one string endsWith another string. Optional position parameter to offset searching before a certain index.
+*
+* @param str - The string that might contain the target string.
+* @param target - The string to search for.
+* @param position - An optional position from the start to search up to this index
+* @returns True if the str string ends with the target string.
+*
+* @example
+* const isPrefix = endsWith('fooBar', 'foo') // returns true
+* const isPrefix = endsWith('fooBar', 'bar') // returns false
+* const isPrefix = endsWith('fooBar', 'abc') // returns false
+* const isPrefix = endsWith('fooBar', 'foo', 3) // returns true
+* const isPrefix = endsWith('fooBar', 'abc', 5) // returns false
+*/
+function endsWith(str, target, position) {
+	if (str == null || target == null) return false;
+	if (position == null) position = str.length;
+	return str.endsWith(target, position);
+}
+//#endregion
+exports.endsWith = endsWith;