refactor:将request结构体写到entity

internal/video/like_entity.go

@@ -4,7 +4,15 @@ import "time"
 
 type Like struct {
 	ID        uint `gorm:"primaryKey"`
-	VideoID   uint `gorm:"index, not null"`
-	AccountID uint `gorm:"index, not null"`
+	VideoID   uint `gorm:"index;not null"`
+	AccountID uint `gorm:"index;not null"`
 	CreatedAt time.Time
 }
+
+type LikeRequest struct {
+	VideoID uint `json:"video_id"`
+}
+
+type LikeHandler struct {
+	service *LikeService
+}