Enhance API error handling and response structure; update app name retrieval method

public/admin/index.php

@@ -0,0 +1,22 @@
+<?php
+// Set debug to true
+$debug = true;
+
+// Load Main Library
+require "../main.php";
+
+// Init Main Class
+$gb = new gb($debug);
+
+// Load and init HTML Loader Library
+require FRONTEND_PATH . "html_loader.php";
+$htmlloader = new HTMLLoader();
+
+// Check Login
+$call = new APICall("auth/isauth.php");
+$response = $call->response;
+
+if (!isset($response["data"]["login"])) {
+    $htmlloader->setPage("login");
+    $htmlloader->show();
+}