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/integration/live_catalog_test.dart

@@ -0,0 +1,76 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:nontonki/core/data/remote/api_client.dart';
+import 'package:nontonki/core/data/remote/catalog_api.dart';
+
+/// 联调测试：直连本机客户端接口服务（8081）。
+/// 服务没启动时自动跳过，不影响日常 `flutter test`。
+void main() {
+  final client = ApiClient(baseUrl: 'http://127.0.0.1:8081');
+  final api = CatalogApi(client);
+
+  tearDownAll(client.close);
+
+  Future<bool> serverUp() async {
+    try {
+      await api.homeFeed();
+      return true;
+    } catch (_) {
+      return false;
+    }
+  }
+
+  test('首页聚合：能解析出轮播与分区', () async {
+    if (!await serverUp()) {
+      markTestSkipped('客户端接口服务未启动，已跳过联调测试');
+      return;
+    }
+    final feed = await api.homeFeed();
+    expect(feed.sections, isNotEmpty);
+    expect(feed.dramas, isNotEmpty);
+    final card = feed.dramas.first;
+    expect(card.id, isNotEmpty);
+    expect(card.title, isNotEmpty);
+    expect(card.posterUrl, startsWith('/files/'));
+  });
+
+  test('详情：剧集按下发顺序排列，可播放集带地址', () async {
+    if (!await serverUp()) {
+      markTestSkipped('客户端接口服务未启动，已跳过联调测试');
+      return;
+    }
+    final feed = await api.homeFeed();
+    final card = feed.dramas.first;
+    final detail = await api.dramaDetail(card.id);
+
+    expect(detail.id, card.id);
+    expect(detail.episodes, isNotEmpty);
+    final numbers = detail.episodes.map((episode) => episode.number).toList();
+    expect(numbers, orderedEquals([...numbers]..sort()));
+    for (final episode in detail.episodes) {
+      if (episode.locked) {
+        expect(episode.videoUrl, isEmpty);
+      } else {
+        expect(episode.videoUrl, startsWith('/files/'));
+      }
+    }
+  });
+
+  test('播放票据：可播放时返回地址', () async {
+    if (!await serverUp()) {
+      markTestSkipped('客户端接口服务未启动，已跳过联调测试');
+      return;
+    }
+    final feed = await api.homeFeed();
+    final detail = await api.dramaDetail(feed.dramas.first.id);
+    final playable = detail.episodes
+        .where((episode) => episode.videoUrl.isNotEmpty)
+        .toList();
+    if (playable.isEmpty) {
+      return;
+    }
+
+    final ticket = await api.playTicket(playable.first.id);
+    expect(ticket.accessible, isTrue);
+    expect(ticket.playUrl, startsWith('/files/'));
+  });
+}