refactor(repo): replace legacy openflare-server with Wavelet rename

Delete the old monolithic openflare-server implementation and rename
Wavelet/ to openflare-server/ to complete the migration consolidation.
Update CI workflows, agent Dockerfiles, and deployment docs for the new
layout (frontend/, docker/Dockerfile).

openflare-server/internal/apps/openflare/config_version/errs.go

@@ -0,0 +1,12 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package config_version
+
+const (
+	errNoActiveVersion       = "当前没有激活版本"
+	errNoEnabledRoutes       = "没有可发布的启用规则"
+	errNoChangesToPublish    = "当前规则没有变更，不能重复发布"
+	errVersionConflict       = "版本号生成冲突，请重试"
+	errInvalidSnapshotFormat = "历史版本快照格式不合法"
+)