fix(ci): exclude chaos_monkey_test from regular CI (#518)

test/backend/chaos_monkey_test.dart

@@ -10,6 +10,9 @@
 //   CHAOS_ROUNDS  (default: 30) — number of random operations to perform
 //   CHAOS_SEED    (default: current epoch ms) — seed for reproducibility
 
+@Tags(['nightly'])
+library;
+
 import 'dart:io';
 import 'dart:math';
 

test/unit/email_repository_impl_test.dart

@@ -514,8 +514,7 @@ void main() {
             ),
           );
 
-      final results =
-          await r.emails.searchEmailsGlobal(null, 'urgent');
+      final results = await r.emails.searchEmailsGlobal(null, 'urgent');
       expect(results, hasLength(1));
       expect(results.first.subject, 'Weekly report');
     });
@@ -569,8 +568,7 @@ void main() {
             ),
           );
 
-      final results =
-          await r.emails.searchEmails('acc-1', 'INBOX', 'client');
+      final results = await r.emails.searchEmails('acc-1', 'INBOX', 'client');
       expect(results, hasLength(1));
       expect(results.first.subject, 'Project update');
       expect(results.first.mailboxPath, 'INBOX');

test/widget/about_screen_test.dart

@@ -50,7 +50,10 @@ Widget _buildScreen({List<Account> accounts = const []}) {
         FakeAccountRepository(accounts),
       ),
     ],
-    child: const MaterialApp(home: AboutScreen()),
+    child: MaterialApp(
+      theme: ThemeData(splashFactory: NoSplash.splashFactory),
+      home: const AboutScreen(),
+    ),
   );
 }