create data file if not exist

data/data.go

@@ -24,9 +24,16 @@ func NewContext(dataPath string) (AppContext, error) {
 // LoadRecords will load records from file
 func (ctx *AppContext) LoadRecords() error {
 	data, err := os.ReadFile(ctx.dataPath)
-	if err != nil {
+
+	// Create the records file if it does not exist
+	if os.IsNotExist(err) {
+		ctx.Records = []model.Record{}
+		return ctx.SaveRecords()
+	} else if err != nil {
+		// Some other type of error has occurred
 		return err
 	}
+
 	return json.Unmarshal(data, &ctx.Records)
 }