fix: resolve lint issues in handlers and middleware

internal/handlers/handlers_test.go

@@ -780,6 +780,7 @@ func TestHandleVolumeAddValidatesPaths(t *testing.T) {
 			// Check if volume was created by listing volumes
 			volumes, _ := createdApp.GetVolumes(context.Background())
 			found := false
+
 			for _, v := range volumes {
 				if v.HostPath == tt.hostPath && v.ContainerPath == tt.containerPath {
 					found = true