basic api access, state managment etc

flutter/lib/pages/account/choose_auth.dart

@@ -0,0 +1,34 @@
+import 'package:flutter/material.dart';
+
+class AccountChoosePage extends StatelessWidget {
+  final void Function()? onLogin;
+  final void Function()? onCreateAccount;
+
+  const AccountChoosePage({super.key, this.onLogin, this.onCreateAccount});
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.center,
+        children: [
+          ElevatedButton(
+            style: ElevatedButton.styleFrom(textStyle: const TextStyle(fontSize: 20)),
+            onPressed: () {
+              onLogin?.call();
+            },
+            child: const Text('Use existing account'),
+          ),
+          const SizedBox(height: 32),
+          ElevatedButton(
+            style: ElevatedButton.styleFrom(textStyle: const TextStyle(fontSize: 20)),
+            onPressed: () {
+              onCreateAccount?.call();
+            },
+            child: const Text('Create new account'),
+          ),
+        ],
+      ),
+    );
+  }
+}