chore(client): 归档原型阶段新增文件（配置、主题、模型与测试）

为什么：上一批归档只覆盖了「已跟踪文件的修改」，原型阶段新增的文件（app_config、theme、
home_feed/play_ticket 模型、catalog_api、测试目录等）还是未入库状态 —— 而已入库的代码会 import 它们，
留在工作区会导致 HEAD 处的代码编译不过。一并归档，让 HEAD 自洽。

纯归档，无行为改动。

test/catalog/drama_model_test.dart

@@ -0,0 +1,60 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:nontonki/core/data/models/drama.dart';
+
+void main() {
+  test('a list card carries one playable preview and the total count', () {
+    final drama = Drama.fromCardJson(const {
+      'id': 5,
+      'title': '闪婚后',
+      'synopsis': 'synopsis',
+      'cover': '/files/cover.jpg',
+      'category': '都市情感',
+      'genre': '都市情感',
+      'totalEpisodes': 77,
+      'isHot': true,
+      'viewCount': 3100000,
+      'preview': {
+        'id': 9,
+        'number': 1,
+        'title': '第 1 集',
+        'isFree': true,
+        'playUrl': '/files/episode/9.mp4',
+      },
+    });
+
+    expect(drama.detailLoaded, isFalse);
+    expect(drama.episodes, hasLength(1));
+    expect(drama.episodes.single.videoUrl, '/files/episode/9.mp4');
+    expect(drama.episodeCount, 77);
+    expect(drama.isHot, isTrue);
+  });
+
+  test('a list card without a playable preview has no episodes', () {
+    final drama = Drama.fromCardJson(const {
+      'id': 6,
+      'title': '替嫁新娘',
+      'totalEpisodes': 12,
+    });
+
+    expect(drama.episodes, isEmpty);
+    expect(drama.episodeCount, 12);
+  });
+
+  test('a detail response counts the episodes it ships', () {
+    final drama = Drama.fromDetailJson(const {
+      'id': 5,
+      'title': '闪婚后',
+      'synopsis': 'synopsis',
+      'cover': '/files/cover.jpg',
+      'totalEpisodes': 77,
+      'episodes': [
+        {'id': 9, 'number': 1, 'title': '第 1 集', 'isFree': true},
+        {'id': 10, 'number': 2, 'title': '第 2 集', 'isFree': false},
+      ],
+    });
+
+    expect(drama.detailLoaded, isTrue);
+    expect(drama.episodeCount, 77);
+    expect(drama.episodes.first.id, '9');
+  });
+}