chore: move the go code into a subfolder

apps/api/internal/domain/application.go

@@ -0,0 +1,49 @@
+package domain
+
+type Application interface {
+	GetAppID() string
+	GetApplicationName() string
+	GetState() AppState
+	//GetSequence() uint64
+	//GetChangeDate() time.Time
+	//GetResourceOwner() string
+}
+
+type AppState int32
+
+const (
+	AppStateUnspecified AppState = iota
+	AppStateActive
+	AppStateInactive
+	AppStateRemoved
+)
+
+func (a AppState) Exists() bool {
+	return !(a == AppStateUnspecified || a == AppStateRemoved)
+}
+
+type ChangeApp struct {
+	AppID   string
+	AppName string
+	State   AppState
+}
+
+func (a *ChangeApp) GetAppID() string {
+	return a.AppID
+}
+
+func (a *ChangeApp) GetApplicationName() string {
+	return a.AppName
+}
+
+func (a *ChangeApp) GetState() AppState {
+	return a.State
+}
+
+type LoginVersion int32
+
+const (
+	LoginVersionUnspecified LoginVersion = iota
+	LoginVersion1
+	LoginVersion2
+)