feat: 注册图生图 API 路由

backend/gateway/router/router.go

@@ -173,6 +173,8 @@ func SetupRouter(userClient *client.Client, socialClient *client.Client, assetCl
 			assets.POST("/mints", assetCtrl.CreateMintOrder)                            // 创建铸造订单
 			assets.GET("/mints/:order_id", assetCtrl.GetMintOrder)                      // 查询铸造订单状态
 			assets.DELETE("/mints/:order_id", assetCtrl.CancelMintOrder)                // 取消铸造订单
+			assets.POST("/mints/image/generation", assetCtrl.ImageGeneration)           // 图生图
+			assets.GET("/mints/image/generation/:job_id", assetCtrl.GetImageJob)        // 查询任务
 			assets.GET("/me/items", assetCtrl.GetMyAssets)                              // 获取我的藏品列表
 			assets.GET("/:asset_id", assetCtrl.GetAsset)                                // 获取资产详情
 			assets.GET("/:asset_id/status", assetCtrl.GetAssetStatus)                   // 查询上链状态