refactor(backend): rename OpenFlare directory to lowercase openflare

backend/openflare/plugins/server/kernel/apiutil/routes.go

@@ -0,0 +1,26 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package apiutil
+
+import (
+	"Wavelet/core"
+
+	"github.com/gin-gonic/gin"
+)
+
+// RegisterCollection registers a collection endpoint on both "" and "/" so requests
+// work with or without a trailing slash.
+//
+// 尾部斜杠变体必须用 HandleRaw 注册：RouterExtension.Handle 会经 cleanPath 归一化
+// 掉尾部斜杠，而部署关闭了 gin 的 RedirectTrailingSlash，缺一条即 404。
+func RegisterCollection(route core.RouterExtension, method string, handlers ...gin.HandlerFunc) {
+	hs := make([]any, len(handlers))
+	for i, h := range handlers {
+		hs[i] = h
+	}
+	route.Handle(method, "", hs...)
+	if route.BasePath() != "" {
+		route.HandleRaw(method, "/", hs...)
+	}
+}