🎨 Update project structure

pkg/internal/models/unified.go

@@ -0,0 +1,21 @@
+package models
+
+import jsoniter "github.com/json-iterator/go"
+
+type UnifiedCommand struct {
+	Action  string `json:"w"`
+	Message string `json:"m"`
+	Payload any    `json:"p"`
+}
+
+func UnifiedCommandFromError(err error) UnifiedCommand {
+	return UnifiedCommand{
+		Action:  "error",
+		Message: err.Error(),
+	}
+}
+
+func (v UnifiedCommand) Marshal() []byte {
+	data, _ := jsoniter.Marshal(v)
+	return data
+}