add models generation and josn print

app/utils/jsonprint/jsonprint.go

@@ -0,0 +1,23 @@
+package jsonprint
+
+import (
+	"encoding/json"
+	"os"
+
+	"github.com/alecthomas/chroma/quick"
+)
+
+func Print(v any) {
+	// Marshal your data to pretty JSON
+	b, err := json.MarshalIndent(v, "", "  ")
+	if err != nil {
+		panic(err)
+	}
+
+	// Use Chroma to print colored JSON to stdout
+	// lexer: "json", style: "monokai", writer: os.Stdout
+	err = quick.Highlight(os.Stdout, string(b), "json", "terminal", "solarized")
+	if err != nil {
+		panic(err)
+	}
+}