优化结构

app/system/internal/integration/README.md

@@ -1,6 +1,6 @@
 # Integrations
 
-`internal/integration` contains adapters that talk to systems outside the
+`app/system/internal/integration` contains adapters that talk to systems outside the
 application process. They may open sockets, create SDK clients, keep reloadable
 state, or translate provider-specific protocols into `biz` interfaces.
 
@@ -16,5 +16,5 @@ lifecycles. Their constructors are exposed through `ProviderSet`; `cmd` binds
 the `cache.RedisProvider` implementation to the shared `data.Data` container.
 
 Stateless protocol helpers that do not own clients live in
-`internal/utils/paymentutil`. They are intentionally small and dependency
+`pkg/paymentkit`. They are intentionally small and dependency
 light, while provider adapters remain here.

app/system/internal/integration/payment/gopay_test.go

@@ -21,7 +21,7 @@ import (
 	"testing"
 
 	"kra/app/system/internal/biz"
-	"kra/app/system/internal/utils/paymentutil"
+	"kra/pkg/paymentkit"
 
 	gopayAlipay "github.com/go-pay/gopay/alipay"
 	gopayDouyin "github.com/go-pay/gopay/douyin"

app/system/internal/integration/payment/qq_test.go

@@ -12,7 +12,7 @@ import (
 	"testing"
 
 	"kra/app/system/internal/biz"
-	"kra/app/system/internal/utils/paymentutil"
+	"kra/pkg/paymentkit"
 
 	"github.com/go-pay/gopay"
 	gopayQQ "github.com/go-pay/gopay/qq"

app/system/internal/integration/payment/result.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 
 	"kra/app/system/internal/biz"
-	"kra/app/system/internal/utils/paymentutil"
+	"kra/pkg/paymentkit"
 )
 
 func callbackFields(callback *biz.PaymentCallback) map[string]string {

app/system/internal/integration/payment/vendor.go

@@ -15,7 +15,7 @@ import (
 	"time"
 
 	"kra/app/system/internal/biz"
-	"kra/app/system/internal/utils/paymentutil"
+	"kra/pkg/paymentkit"
 )
 
 type vendorProfile string