added vocabulary audio reading

lib/src/models/kanji_item.dart

@@ -96,19 +96,27 @@ class VocabSrsItem {
   }) : lastAsked = lastAsked ?? DateTime.now();
 }
 
+class PronunciationAudio {
+  final String url;
+  final String gender;
+
+  PronunciationAudio({required this.url, required this.gender});
+}
+
 class VocabularyItem {
   final int id;
   final String characters;
   final List<String> meanings;
   final List<String> readings;
+  final List<PronunciationAudio> pronunciationAudios;
   final Map<String, VocabSrsItem> srsItems = {};
 
-  VocabularyItem({
-    required this.id,
-    required this.characters,
-    required this.meanings,
-    required this.readings,
-  });
+  VocabularyItem(
+      {required this.id,
+      required this.characters,
+      required this.meanings,
+      required this.readings,
+      required this.pronunciationAudios});
 
   factory VocabularyItem.fromSubject(Map<String, dynamic> subj) {
     final int id = subj['id'] as int;
@@ -116,6 +124,7 @@ class VocabularyItem {
     final String characters = (data['characters'] ?? '') as String;
     final List<String> meanings = <String>[];
     final List<String> readings = <String>[];
+    final List<PronunciationAudio> pronunciationAudios = <PronunciationAudio>[];
 
     if (data['meanings'] != null) {
       for (final m in data['meanings'] as List) {
@@ -129,11 +138,26 @@ class VocabularyItem {
       }
     }
 
+    if (data['pronunciation_audios'] != null) {
+      for (final audio in data['pronunciation_audios'] as List) {
+        final url = audio['url'] as String?;
+        final metadata = audio['metadata'] as Map<String, dynamic>?;
+        final gender = metadata?['gender'] as String?;
+
+        if (url != null && gender != null) {
+          pronunciationAudios.add(PronunciationAudio(
+            url: url,
+            gender: gender,
+          ));
+        }
+      }
+    }
+
     return VocabularyItem(
-      id: id,
-      characters: characters,
-      meanings: meanings,
-      readings: readings,
-    );
+        id: id,
+        characters: characters,
+        meanings: meanings,
+        readings: readings,
+        pronunciationAudios: pronunciationAudios);
   }
 }