提交 Nontonki 短剧原型，准备推送到远程仓库。

Co-authored-by: Cursor <cursoragent@cursor.com>

lib/pages/home/home_feed_sections.dart

@@ -0,0 +1,30 @@
+import '../../core/data/models/drama.dart';
+
+enum HomeFeedCategory { following, animated, liveAction, recommended }
+
+/// Maps catalog entries into home feeds without owning playback or UI state.
+class HomeFeedSections {
+  HomeFeedSections(this.dramas, {this.followedDramaIds = const {}});
+
+  final List<Drama> dramas;
+  final Set<String> followedDramaIds;
+
+  List<int> indicesFor(HomeFeedCategory category) => [
+    for (var index = 0; index < dramas.length; index++)
+      if (dramas[index].episodes.isNotEmpty &&
+          switch (category) {
+            HomeFeedCategory.following => followedDramaIds.contains(
+              dramas[index].id,
+            ),
+            HomeFeedCategory.animated =>
+              dramas[index].format == DramaFormat.animated,
+            HomeFeedCategory.liveAction =>
+              dramas[index].format == DramaFormat.liveAction,
+            HomeFeedCategory.recommended => true,
+          })
+        index,
+  ];
+
+  Drama dramaAt(HomeFeedCategory category, int categoryIndex) =>
+      dramas[indicesFor(category)[categoryIndex]];
+}