fix(P1): Router Bug 修复 + Video 复合索引 + ListByAuthorID 加 LIMIT

backend/internal/http/router.go

@@ -144,7 +144,7 @@ func SetRouter(db *gorm.DB, cache *rediscache.Client, rmq *rabbitmq.RabbitMQ) *g
 	timelineMQ, err := rabbitmq.NewTimelineMQ(rmq)
 	if err != nil {
 		log.Printf("timelineMQ init failed (mq disabled): %v", err)
-		socialMQ = nil
+		timelineMQ = nil
 	}
 	worker.StartOutboxPoller(db, timelineMQ)
 	worker.StartConsumer(timelineMQ, "video.timeline.update.queue", cache)

backend/internal/video/video_entity.go

@@ -10,9 +10,10 @@ type Video struct {
 	Description string    `gorm:"type:varchar(255);" json:"description,omitempty"`
 	PlayURL     string    `gorm:"type:varchar(255);not null" json:"play_url"`
 	CoverURL    string    `gorm:"type:varchar(255);not null" json:"cover_url"`
-	CreateTime  time.Time `gorm:"autoCreateTime" json:"create_time"`
-	LikesCount  int64     `gorm:"column:likes_count;not null;default:0" json:"likes_count"`
-	Popularity  int64     `gorm:"column:popularity;not null;default:0" json:"popularity"`
+	CreateTime  time.Time `gorm:"autoCreateTime;index:idx_videos_create_time,sort:desc;index:idx_videos_popularity_time_id,priority:2,sort:desc" json:"create_time"`
+	LikesCount  int64     `gorm:"column:likes_count;not null;default:0;index:idx_videos_likes_count_id,priority:1,sort:desc" json:"likes_count"`
+	Popularity  int64     `gorm:"column:popularity;not null;default:0;index:idx_videos_popularity_time_id,priority:1,sort:desc" json:"popularity"`
+}
 }
 
 type PublishVideoRequest struct {

backend/internal/video/video_repo.go

@@ -41,7 +41,7 @@ func (vr *VideoRepository) ListByAuthorID(ctx context.Context, authorID int64) (
 	if err := vr.db.WithContext(ctx).
 		Where("author_id = ?", authorID).
 		Order("create_time desc").
-		Offset(0).
+		Limit(200).
 		Find(&videos).Error; err != nil {
 		return nil, err
 	}