feat(app): 推荐流支持分类过滤

fruitshorts-app-api/src/main/java/com/fruitshorts/app/controller/AppCatalogController.java

@@ -41,13 +41,14 @@ public class AppCatalogController {
         return Result.ok(appCatalogService.discoverFeed());
     }
 
-    @Operation(summary = "推荐流：支持内容类型多选与游标翻页")
+    @Operation(summary = "推荐流：支持内容类型、分类过滤与游标翻页")
     @GetMapping("/feed")
     public Result<CursorResult<AppDramaCardVO>> feed(
             @RequestParam(required = false) String types,
+            @RequestParam(required = false) Long categoryId,
             @RequestParam(required = false) Long cursor,
             @RequestParam(required = false) Integer size) {
-        return Result.ok(appCatalogService.feed(types, cursor, size));
+        return Result.ok(appCatalogService.feed(types, categoryId, cursor, size));
     }
 
     @Operation(summary = "分类列表")

fruitshorts-app-api/src/main/java/com/fruitshorts/app/service/AppCatalogService.java

@@ -74,7 +74,8 @@ public class AppCatalogService {
                 .toList();
     }
 
-    public CursorResult<AppDramaCardVO> feed(String types, Long cursor, Integer size) {
+    public CursorResult<AppDramaCardVO> feed(
+            String types, Long categoryId, Long cursor, Integer size) {
         int pageSize = size == null ? DEFAULT_FEED_SIZE : Math.max(1, Math.min(size, MAX_FEED_SIZE));
         List<String> dramaTypes = types == null
                 ? List.of()
@@ -82,7 +83,8 @@ public class AppCatalogService {
                         .map(String::trim)
                         .filter(type -> !type.isEmpty())
                         .toList();
-        List<Drama> rows = dramaService.listPublishedFeed(dramaTypes, cursor, pageSize + 1);
+        List<Drama> rows = dramaService.listPublishedFeed(
+                dramaTypes, categoryId, cursor, pageSize + 1);
         if (rows.isEmpty()) {
             return CursorResult.empty();
         }