整个课程和数据UI重新设计版本

kouyu_english/test/local_store_test.dart

@@ -162,4 +162,51 @@ void main() {
       await executor.close();
     },
   );
+
+  test(
+    'repeated writes with cached analyses still persist later review progress',
+    () async {
+      final executor = NativeDatabase.memory();
+      final store = LocalSnapshotStore.forTesting(executor);
+      String snapshot(String dueAt) => jsonEncode({
+        'onboardingComplete': true,
+        'activeLessonId': 'a0-01',
+        'attemptEvidence': [],
+        'mastery': [],
+        'reviews': [
+          {
+            'id': 'hello',
+            'target': 'hello',
+            'prompt': 'Say hello',
+            'hint': '你好',
+            'dueAt': dueAt,
+            'skill': '口头回忆',
+          },
+        ],
+        'temporaryLexicon': [
+          {'query': 'Hello', 'definition': '你好'},
+          {'query': 'hello', 'definition': '你好'},
+        ],
+        'sentenceAnalyses': [
+          {
+            'query': 'Nice to meet you.',
+            'payload': {'translation': '很高兴认识你。'},
+          },
+        ],
+      });
+
+      await store.write(snapshot('2026-09-18T08:00:00.000'));
+      // A completed review moves the card to tomorrow; this write must land.
+      await store.write(snapshot('2026-09-19T08:00:00.000'));
+
+      final restored =
+          jsonDecode((await store.read())!) as Map<String, dynamic>;
+      expect(
+        (restored['reviews'] as List).single['dueAt'],
+        '2026-09-19T08:00:00.000',
+      );
+      expect(restored['sentenceAnalyses'], hasLength(1));
+      await executor.close();
+    },
+  );
 }