refactor: oauth2登录重构

server/internal/auth/domain/repository/oauth2.go

@@ -0,0 +1,10 @@
+package repository
+
+import "mayfly-go/internal/auth/domain/entity"
+
+type Oauth2Account interface {
+	// GetOAuthAccount 根据identity获取第三方账号信息
+	GetOAuthAccount(condition *entity.Oauth2Account, cols ...string) error
+
+	SaveOAuthAccount(e *entity.Oauth2Account) error
+}