feat: SSR 友链页与最小 Admin 审核

公开 /links 列表与申请/取消，导航页脚可配入口；后台品牌增删与通过/拒绝。

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

routers/setup.go

@@ -100,7 +100,8 @@ func Setup(cfg *config.Config) (*gin.Engine, error) {
 		Board: boardSvc, Post: postSvc, Comment: commentSvc,
 		Message: messageSvc, Filter: filter,
 		Limiter: limiter, EmailCode: emailCodeSvc, Store: uploadStore,
-		Points: services.NewPointsService(),
+		Points:     services.NewPointsService(),
+		FriendLink: friendLinkApplySvc,
 	}, authMW)
 
 	r.GET("/media/thumb/*filepath", h.ServeImageThumb)