feat(player): 点赞与评论改为按集

lib/core/data/models/drama.dart

@@ -15,6 +15,8 @@ class Episode {
     this.videoUrl = '',
     this.durationSec = 0,
     this.locked = false,
+    this.likeCount,
+    this.commentCount,
   });
 
   final String id;
@@ -28,16 +30,21 @@ class Episode {
 
   /// 后端判定需要解锁；解锁能力（金币/VIP）在 M3 接入。
   final bool locked;
+  final int? likeCount;
+  final int? commentCount;
 
-  Episode withVideoUrl(String url) => Episode(
-    id: id,
-    number: number,
-    title: title,
-    isFree: isFree,
-    videoUrl: url,
-    durationSec: durationSec,
-    locked: locked,
-  );
+  Episode withVideoUrl(String url, {int? likeCount, int? commentCount}) =>
+      Episode(
+        id: id,
+        number: number,
+        title: title,
+        isFree: isFree,
+        videoUrl: url,
+        durationSec: durationSec,
+        locked: locked,
+        likeCount: likeCount ?? this.likeCount,
+        commentCount: commentCount ?? this.commentCount,
+      );
 
   factory Episode.fromJson(Map<String, dynamic> json) {
     return Episode(
@@ -48,6 +55,8 @@ class Episode {
       durationSec: (json['durationSec'] as num?)?.toInt() ?? 0,
       locked: json['locked'] == true,
       videoUrl: json['playUrl'] as String? ?? '',
+      likeCount: _optionalInt(json['likeCount']),
+      commentCount: _optionalInt(json['commentCount']),
     );
   }
 }