✨ Sign in check

lib/widgets/signin_required.dart

@@ -0,0 +1,40 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_gen/gen_l10n/app_localizations.dart';
+import 'package:solian/router.dart';
+
+class SignInRequiredScreen extends StatelessWidget {
+  const SignInRequiredScreen({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return GestureDetector(
+      child: Center(
+        child: Container(
+          constraints: const BoxConstraints(maxWidth: 340),
+          child: Column(
+            mainAxisAlignment: MainAxisAlignment.center,
+            children: [
+              const Icon(Icons.login, size: 40),
+              const SizedBox(height: 20),
+              Text(
+                AppLocalizations.of(context)!.signInRequired,
+                style: Theme.of(context).textTheme.headlineSmall,
+                textAlign: TextAlign.center,
+              ),
+              const SizedBox(height: 20),
+              Text(
+                AppLocalizations.of(context)!.signInCaption,
+                style: Theme.of(context).textTheme.bodyMedium,
+                textAlign: TextAlign.center,
+              )
+            ],
+          ),
+        ),
+      ),
+      onTap: () {
+        router.goNamed('account');
+      },
+    );
+  }
+
+}