refactor: 消息模块重构，infra包路径简写等

server/internal/auth/infra/persistence/oauth2.go

@@ -0,0 +1,15 @@
+package persistence
+
+import (
+	"mayfly-go/internal/auth/domain/entity"
+	"mayfly-go/internal/auth/domain/repository"
+	"mayfly-go/pkg/base"
+)
+
+type oauth2AccountRepoImpl struct {
+	base.RepoImpl[*entity.Oauth2Account]
+}
+
+func newAuthAccountRepo() repository.Oauth2Account {
+	return &oauth2AccountRepoImpl{}
+}