chore: add crypto payment

backend/gestion/main.go

@@ -87,6 +87,16 @@ func main() {
 	// Démarrage des workers Redis en arrière-plan
 	go workers.StartRedisWorkers(database)
 	log.Println("✅ Workers Redis démarrés")
+
+	// Worker de vérification des paiements crypto (recharge les clés dynamiquement)
+	workers.StartDynamicPaymentChecker(database, func() *services.NowPaymentsClient {
+		s, err := database.GetSettings()
+		if err != nil || !s.CryptoPaymentEnabled || s.NowPaymentsAPIKey == "" {
+			return nil
+		}
+		return services.NewNowPaymentsClient(s.NowPaymentsAPIKey, s.NowPaymentsIPNSecret)
+	}, 2*time.Minute)
+	log.Println("✅ Worker paiements crypto démarré (2 min)")
 	gin.SetMode(gin.ReleaseMode)
 	r := gin.Default()
 
@@ -118,6 +128,16 @@ func main() {
 		c.Next()
 	})
 
+	// Middleware NowPayments : injecte le client si crypto activé dans les settings
+	r.Use(func(c *gin.Context) {
+		settings, err := database.GetSettings()
+		if err == nil && settings.CryptoPaymentEnabled && settings.NowPaymentsAPIKey != "" {
+			np := services.NewNowPaymentsClient(settings.NowPaymentsAPIKey, settings.NowPaymentsIPNSecret)
+			c.Set("nowpayments", np)
+		}
+		c.Next()
+	})
+
 	// Fichiers statiques
 	r.Static("/uploads", "./uploads")