chore: move the go code into a subfolder

apps/api/internal/domain/object.go

@@ -0,0 +1,16 @@
+package domain
+
+import (
+	"time"
+)
+
+type ObjectDetails struct {
+	Sequence uint64
+	// EventDate is the date of the last event that changed the object
+	EventDate time.Time
+	// CreationDate is the date of the first event that created the object
+	CreationDate  time.Time
+	ResourceOwner string
+	// ID is the Aggregate ID of the resource
+	ID string
+}