chore: add create user route

backend/gestion/routes/routes.go

@@ -127,6 +127,7 @@ func SetupRoutes(router *gin.Engine, database *db.Database, geoService *services
 		adminGroupV2.PUT("/users/:id", handlers.UpdateUserByAdmin)     // ✅ Modifier un user
 		adminGroupV2.DELETE("/clients/:id", handlers.DeleteClient)
 		adminGroupV2.DELETE("/users/:id", handlers.DeleteUser)
+		adminGroupV2.POST("/users", handlers.CreateUser)
 		// Get location livreur
 		adminGroupV2.GET("/commands/:id/deliveryman/location", handlers.GetDeliverymanLocationForCommand)
 		// ============================================