修复 ocr 错误

backend/internal/modules/chat/repository.go

@@ -2,6 +2,7 @@ package chat
 
 import (
 	"errors"
+	"github.com/redis/go-redis/v9"
 	"gorm.io/gorm"
 	"gorm.io/gorm/clause"
 	"hfb_sys/backend/internal/model"
@@ -10,16 +11,17 @@ import (
 )
 
 type Repository struct {
-	db  *gorm.DB
-	hub *chathub.Hub
+	db    *gorm.DB
+	hub   *chathub.Hub
+	redis *redis.Client
 }
 
 const (
 	defaultSupportRoleCode = "cs"
 )
 
-func NewRepository(db *gorm.DB, hub *chathub.Hub) *Repository {
-	return &Repository{db: db, hub: hub}
+func NewRepository(db *gorm.DB, hub *chathub.Hub, redis *redis.Client) *Repository {
+	return &Repository{db: db, hub: hub, redis: redis}
 }
 func EnsureOrderConversation(tx *gorm.DB, order model.RentalOrder) (*model.ChatConversation, error) {
 	var existing model.ChatConversation