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/apiutil/routes.go

@@ -0,0 +1,19 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package apiutil
+
+import (
+	"strings"
+
+	"github.com/gin-gonic/gin"
+)
+
+// RegisterCollection registers a collection endpoint on both "" and "/" so requests
+// work with or without a trailing slash.
+func RegisterCollection(route *gin.RouterGroup, method string, handlers ...gin.HandlerFunc) {
+	route.Handle(method, "/", handlers...)
+	if !strings.HasSuffix(route.BasePath(), "/") {
+		route.Handle(method, "", handlers...)
+	}
+}