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/formatting/localized_content_test.dart

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+import 'package:flutter_test/flutter_test.dart';
+import 'package:nontonki/core/data/models/drama.dart';
+import 'package:nontonki/core/formatting/localized_content.dart';
+import 'package:nontonki/l10n/app_localizations_en.dart';
+import 'package:nontonki/l10n/app_localizations_zh.dart';
+
+Drama _drama({required String id, String title = 'raw', String synopsis = 'raw'}) =>
+    Drama(
+      id: id,
+      title: title,
+      synopsis: synopsis,
+      posterUrl: '/files/poster.png',
+      episodes: const [],
+    );
+
+void main() {
+  final en = AppLocalizationsEn();
+  final zh = AppLocalizationsZh();
+
+  test('each seeded drama maps onto its own localized copy', () {
+    final signal = _drama(id: 'the-signal-demo');
+    final city = _drama(id: 'city-lights-demo');
+    final vengeance = _drama(id: 'vengeance-demo');
+
+    expect(localizedDramaTitle(en, signal), en.dramaSignalTitle);
+    expect(localizedDramaTitle(en, city), en.dramaCityTitle);
+    expect(localizedDramaTitle(en, vengeance), en.dramaVengeanceTitle);
+
+    expect(localizedDramaSynopsis(en, signal), en.dramaSignalSynopsis);
+    expect(localizedDramaSynopsis(en, city), en.dramaCitySynopsis);
+    expect(localizedDramaSynopsis(en, vengeance), en.dramaVengeanceSynopsis);
+  });
+
+  test('the mapping does not collapse two dramas onto one entry', () {
+    final titles = {
+      localizedDramaTitle(en, _drama(id: 'the-signal-demo')),
+      localizedDramaTitle(en, _drama(id: 'city-lights-demo')),
+      localizedDramaTitle(en, _drama(id: 'vengeance-demo')),
+    };
+    final synopses = {
+      localizedDramaSynopsis(en, _drama(id: 'the-signal-demo')),
+      localizedDramaSynopsis(en, _drama(id: 'city-lights-demo')),
+      localizedDramaSynopsis(en, _drama(id: 'vengeance-demo')),
+    };
+
+    expect(titles, hasLength(3));
+    expect(synopses, hasLength(3));
+  });
+
+  test('localized copy is translated rather than reused verbatim', () {
+    final signal = _drama(id: 'the-signal-demo');
+
+    expect(localizedDramaTitle(zh, signal), zh.dramaSignalTitle);
+    expect(localizedDramaSynopsis(zh, signal), zh.dramaSignalSynopsis);
+    expect(localizedDramaTitle(zh, signal), isNot(en.dramaSignalTitle));
+  });
+
+  test('an unknown drama keeps the catalog text in every locale', () {
+    final custom = _drama(
+      id: 'custom-demo',
+      title: 'Custom Title',
+      synopsis: 'Custom synopsis',
+    );
+
+    expect(localizedDramaTitle(en, custom), 'Custom Title');
+    expect(localizedDramaTitle(zh, custom), 'Custom Title');
+    expect(localizedDramaSynopsis(en, custom), 'Custom synopsis');
+    expect(localizedDramaSynopsis(zh, custom), 'Custom synopsis');
+  });
+
+  test('the raw catalog text is ignored for a seeded drama', () {
+    final signal = _drama(
+      id: 'the-signal-demo',
+      title: 'stale title',
+      synopsis: 'stale synopsis',
+    );
+
+    expect(localizedDramaTitle(en, signal), isNot('stale title'));
+    expect(localizedDramaSynopsis(en, signal), isNot('stale synopsis'));
+  });
+
+  test('episodes one to four use named titles', () {
+    expect(localizedEpisodeTitle(en, 1), en.episodeOneTitle);
+    expect(localizedEpisodeTitle(en, 2), en.episodeTwoTitle);
+    expect(localizedEpisodeTitle(en, 3), en.episodeThreeTitle);
+    expect(localizedEpisodeTitle(en, 4), en.episodeFourTitle);
+  });
+
+  test('later episodes fall back to a numbered label', () {
+    for (final number in <int>[5, 12, 100]) {
+      expect(localizedEpisodeTitle(en, number), en.episodeLabel(number));
+      expect(localizedEpisodeTitle(en, number), contains('$number'));
+    }
+    expect(localizedEpisodeTitle(zh, 12), zh.episodeLabel(12));
+  });
+}