fix: update error test to return enum field

Author: TristanSpeakEasy

internal/errors/service.go

@@ -32,6 +32,7 @@ func HandleErrors(w http.ResponseWriter, r *http.Request) {
 	if err := json.NewEncoder(w).Encode(models.Error{
 		Code:    statusCode,
 		Message: "an error occurred",
+		Type:    "internal",
 	}); err != nil {
 		utils.HandleError(w, err)
 		return

pkg/models/models.go

@@ -3,6 +3,7 @@ package models
 type Error struct {
 	Message string `json:"message"`
 	Code    string `json:"code"`
+	Type    string `json:"type"`
 }
 
 type ErrorResponse struct {