fix(interaction): 收藏计数同步维护并新增评论数接口

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

@@ -63,6 +63,12 @@ public class AppCommentController {
         return Result.ok(commentService.page(SecurityUtils.getUserIdOrNull(), query));
     }
 
+    @Operation(summary = "短剧评论总数（可匿名访问）")
+    @GetMapping("/count")
+    public Result<Long> count(@RequestParam Long dramaId) {
+        return Result.ok(commentService.countByDrama(dramaId));
+    }
+
     @Operation(summary = "删除自己的评论")
     @DeleteMapping("/{id}")
     public Result<Void> delete(@PathVariable Long id) {