consolidated UI setup into a single function call from main

ui/setup.go

@@ -0,0 +1,28 @@
+/*
+ * Amsterdam Web Communities System
+ * Copyright (c) 2025-2026 Erbosoft Metaverse Design Solutions, All Rights Reserved
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+// Package ui holds the support for the Amsterdam user interface, wrapping Echo and Jet templates.
+package ui
+
+import "slices"
+
+// SetupUILayer sets up the UI layer, and returns a function to close it down again.
+func SetupUILayer() func() {
+	exitfuncs := make([]func(), 0, 2)
+	setupTemplates()
+	setupMenuCache()
+	exitfuncs = append(exitfuncs, setupSessionManager())
+	exitfuncs = append(exitfuncs, setupContext())
+	return func() {
+		slices.Reverse(exitfuncs)
+		for _, f := range exitfuncs {
+			f()
+		}
+	}
+}