Done login routine

lib/pages/checkup_page.dart

@@ -0,0 +1,52 @@
+import 'package:animated_background/animated_background.dart';
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:get_storage/get_storage.dart';
+
+class CheckupPage extends StatefulWidget {
+  const CheckupPage({super.key});
+
+  @override
+  State<StatefulWidget> createState() => _CheckupPageState();
+}
+
+class _CheckupPageState extends State<CheckupPage>
+    with TickerProviderStateMixin {
+  @override
+  void initState() {
+    super.initState();
+
+    final accessToken = GetStorage().read<String?>("accessToken");
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (accessToken == null) {
+        Get.offAllNamed("/login");
+      } else {
+        Get.offAllNamed("/home");
+      }
+    });
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AnimatedBackground(
+      behaviour: RandomParticleBehaviour(),
+      vsync: this,
+      child: Center(
+        child: Column(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Text(
+              'Checking credentials...',
+              style: Theme.of(context).textTheme.headlineMedium,
+            ),
+            const SizedBox(height: 16),
+            const SizedBox.square(
+              dimension: 32,
+              child: CircularProgressIndicator(),
+            ),
+          ],
+        ),
+      ),
+    );
+  }
+}