refactor(openflare): remove legacy update API, use admin updater

Drop the migrated /api/v1/openflare/update compatibility layer and point
the OpenFlare upgrade UI at Wavelet's /api/v1/admin/update endpoints.

Wavelet/internal/router/v1/openflare/register_update.go

@@ -1,22 +0,0 @@
-// Copyright 2026 Arctel.net
-// SPDX-License-Identifier: Apache-2.0
-
-package openflare
-
-import (
-	"github.com/Rain-kl/Wavelet/internal/apps/openflare/apiutil"
-	"github.com/Rain-kl/Wavelet/internal/apps/openflare/update"
-	"github.com/gin-gonic/gin"
-)
-
-func registerUpdateRoutes(apiGroup *gin.RouterGroup) {
-	updateRoute := apiGroup.Group("/update")
-	updateRoute.Use(apiutil.AdminRequired())
-	{
-		updateRoute.GET("/latest-release", update.GetLatestReleaseHandler)
-		updateRoute.GET("/logs/ws", update.StreamServerUpgradeLogsHandler)
-		updateRoute.POST("/manual-upload", update.UploadManualServerBinaryHandler)
-		updateRoute.POST("/manual-upgrade", update.ConfirmManualServerUpgradeHandler)
-		updateRoute.POST("/upgrade", update.UpgradeServerHandler)
-	}
-}

Wavelet/internal/router/v1/openflare/v1.go

@@ -22,5 +22,4 @@ func RegisterV1Routes(apiV1Router *gin.RouterGroup) {
 	registerPagesRoutes(group)
 	registerDashboardRoutes(group)
 	registerObservabilityRoutes(group)
-	registerUpdateRoutes(group)
 }