Update backend/services/shortener.go

Update backend/routes/routes.go

Update backend/handlers/redirect.go

Update backend/services/shortener.go

Update backend/routes/routes.go

Update backend/services/shortener.go

Delete backend/services/transform.go

Create services_transform.go

Update backend/handlers/transform.go

Update backend/middleware/middleware.go

Update backend/services/transform.go

Update backend/services/shortener.go

Update backend/handlers/transform.go

Prepare backend Docker deployment for Hugging Face Spaces

Fix backend port for Render deployment

Initial commit