Improved input service. New Manager web app. Directory and small readme for output service.

manager/gr.go

@@ -0,0 +1,17 @@
+package main
+
+import (
+	"fmt"
+	"github.com/skip2/go-qrcode"
+)
+
+func PrintQRCode(content string) {
+	qr, err := qrcode.New(content, qrcode.Medium)
+	if err != nil {
+		logger.Error("Failed to generate QR code: %v", err)
+		return
+	}
+
+	// Generate QR code as string (ASCII art)
+	fmt.Println(qr.ToSmallString(false))
+}