refactor(backend): rename OpenFlare directory to lowercase openflare

backend/openflare/plugins/server/domain/site/zone/errs.go

@@ -0,0 +1,19 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package zone
+
+const (
+	errZoneDomainRequired        = "域名不能为空"
+	errZoneRootInvalid           = "zone 必须是有效的注册根域"
+	errDomainInvalid             = "域名格式不合法"
+	errDomainWildcardUnsupported = "不支持通配符域名"
+	errDomainOutsideZone         = "域名不属于该 Zone"
+	errZoneNotFound              = "Zone 不存在"
+	errDomainNotFound            = "域名不存在"
+	errDomainExists              = "域名已存在"
+	errCertificateNotFound       = "所选证书不存在"
+	errDomainBoundToRoute        = "域名已绑定反代路由，请先解除绑定"
+	errZoneHasDomains            = "根域下仍有域名，请先删除全部域名"
+	errStatsRangeInvalid         = "时间范围无效，请选择 24h、7d 或 30d"
+)