feat: use community categories for topic navigation

server/app/api/controller/CommunityController.php

@@ -7,6 +7,7 @@ use app\common\model\community\CommunityPost;
 use app\common\model\community\CommunityComment;
 use app\common\model\community\CommunityLike;
 use app\common\model\community\CommunityFollow;
+use app\common\model\community\CommunityCategory;
 use app\common\model\community\CommunityTag;
 use app\common\model\user\User;
 use app\common\model\ai\AiAnalysis;
@@ -24,7 +25,7 @@ class CommunityController extends BaseApiController
 {
     private const LIUHE_TAGS = ['旧澳六合', '新澳六合'];
 
-    public array $notNeedLogin = ['postLists', 'postDetail', 'commentLists', 'tagLists', 'userProfile', 'followList', 'fansList'];
+    public array $notNeedLogin = ['postLists', 'postDetail', 'commentLists', 'tagLists', 'categoryLists', 'userProfile', 'followList', 'fansList'];
 
     // 帖子列表
     public function postLists()
@@ -423,6 +424,18 @@ class CommunityController extends BaseApiController
         return $this->data($list);
     }
 
+    // 分类列表
+    public function categoryLists()
+    {
+        $list = CommunityCategory::where('status', 1)
+            ->order('sort desc')
+            ->order('id desc')
+            ->field('id,name,icon,post_count')
+            ->select()
+            ->toArray();
+        return $this->data($list);
+    }
+
     // 购买帖子
     // confirm=0 探测是否已购买；confirm=1 确认扣分购买
     public function purchasePost()