refactor: Update service and repository methods to use context

- Refactored multiple service and repository methods to accept context as a parameter, enhancing consistency and enabling better control over request lifecycles.
- Updated handlers to utilize context in method calls, improving error handling and performance.
- Cleaned up Dockerfile by removing unnecessary whitespace.

internal/model/client.go

@@ -22,3 +22,5 @@ func (Client) TableName() string {
 	return "clients"
 }
 
+
+