AI 接入 V0.1

test/page_layout_test.dart

@@ -5,6 +5,7 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:qiangbao_accounting/models/bill.dart';
 import 'package:qiangbao_accounting/models/note.dart';
 import 'package:qiangbao_accounting/models/statistics_response.dart';
+import 'package:qiangbao_accounting/pages/assistant/assistant_page.dart';
 import 'package:qiangbao_accounting/pages/bill/bill_home_page.dart';
 import 'package:qiangbao_accounting/pages/home/dashboard_page.dart';
 import 'package:qiangbao_accounting/providers/bill_provider.dart';
@@ -102,5 +103,36 @@ void main() {
       expect(find.text('我的账单'), findsOneWidget);
       expect(tester.takeException(), isNull);
     });
+
+    testWidgets('助手页（push 进来）$label 不溢出', (tester) async {
+      useSize(tester, size);
+      await tester.pumpWidget(
+        ProviderScope(
+          child: MaterialApp(
+            home: Builder(
+              builder: (ctx) => Scaffold(
+                body: Center(
+                  child: TextButton(
+                    onPressed: () => Navigator.of(ctx).push(
+                      MaterialPageRoute(builder: (_) => const AssistantPage()),
+                    ),
+                    child: const Text('进入'),
+                  ),
+                ),
+              ),
+            ),
+          ),
+        ),
+      );
+
+      await tester.tap(find.text('进入'));
+      await tester.pumpAndSettle();
+
+      // 空状态：标题 + 引导问题 + 底部输入框
+      expect(find.text('问我点什么'), findsOneWidget);
+      expect(find.text('这个月花了多少钱？'), findsOneWidget);
+
+      expect(tester.takeException(), isNull);
+    });
   }
 }