Use plugin-specific i18n domain for translations

Convert __() calls in the unauthorized-handler middleware to __d('tinyauth', ...)
so user-facing strings live in their own translation domain instead of leaking
into the host app's default domain.

Add resources/locales/tinyauth.pot generated via cake i18n extract so
translators have a stable POT to base language files on.

Author: dereuromark

resources/locales/tinyauth.pot

@@ -0,0 +1,19 @@
+# LANGUAGE translation of CakePHP Application
+# Copyright YEAR NAME <EMAIL@ADDRESS>
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PROJECT VERSION\n"
+"POT-Creation-Date: 2026-05-04 02:47+0200\n"
+"PO-Revision-Date: YYYY-mm-DD HH:MM+ZZZZ\n"
+"Last-Translator: NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <EMAIL@ADDRESS>\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=utf-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=INTEGER; plural=EXPRESSION;\n"
+
+msgid "You are not authorized to access that location."
+msgstr ""
+

src/Middleware/UnauthorizedHandler/ForbiddenCakeRedirectHandler.php

@@ -52,7 +52,7 @@ public function handle(Exception $exception, ServerRequestInterface $request, ar
 
 		$response = parent::handle($exception, $request, $options);
 
-		$message = $options['unauthorizedMessage'] ?? __('You are not authorized to access that location.');
+		$message = $options['unauthorizedMessage'] ?? __d('tinyauth', 'You are not authorized to access that location.');
 		if ($message) {
 			/** @var \Cake\Http\ServerRequest $request */
 			$request->getFlash()->error($message);

src/Middleware/UnauthorizedHandler/ForbiddenRedirectHandler.php

@@ -49,7 +49,7 @@ public function handle(Exception $exception, ServerRequestInterface $request, ar
 
 		$response = parent::handle($exception, $request, $options);
 
-		$message = $options['unauthorizedMessage'] ?? __('You are not authorized to access that location.');
+		$message = $options['unauthorizedMessage'] ?? __d('tinyauth', 'You are not authorized to access that location.');
 		if ($message) {
 			/** @var \Cake\Http\ServerRequest $request */
 			$request->getFlash()->error($message);