feat: enhance job and user models with additional fields

- Added VideoID, UserID, and TimeLimit fields to the job model.
- Removed unused referral fields from the user model.
- Updated job creation and update logic to handle new fields.
- Refactored job service to work with updated job model.
- Replaced cache interface with Redis adapter in service layer.
- Introduced a Dead Letter Queue (DLQ) for failed jobs in Redis.
- Updated gRPC server to accommodate changes in job handling.
- Removed obsolete cache package and related files.

internal/middleware/authenticator_test.go

@@ -13,7 +13,6 @@ import (
 	"google.golang.org/grpc/status"
 	"gorm.io/driver/sqlite"
 	"gorm.io/gorm"
-	_ "modernc.org/sqlite"
 	"stream.api/internal/database/model"
 	"stream.api/internal/database/query"
 )