优化结构

internal/data/system/provider.go

@@ -0,0 +1,16 @@
+package system
+
+import (
+	"kra/internal/conf"
+
+	"gorm.io/gorm"
+)
+
+// Provider exposes the shared data infrastructure needed by system
+// repositories without coupling this module to the parent data package.
+type Provider interface {
+	DB() *gorm.DB
+	Database(name string) (*gorm.DB, error)
+	DatabaseReady() bool
+	Runtime() *conf.Runtime
+}