Add php-scoper to phar build to prevent namespace conflicts

All vendor dependencies (nikic/php-parser, symfony/*, phpstan/phpdoc-parser,
webmozart/assert, ondram/ci-detector) are prefixed with PhpArkitect\ inside the
phar, eliminating conflicts when the host project uses the same libraries.
The Arkitect\ namespace is excluded from scoping so end-user config files
remain unaffected.

https://claude.ai/code/session_01R4VMqad8oVQw3g1HPwPp8G

Author: claude

Makefile

@@ -17,7 +17,7 @@ test_%: ## it launches a test
 
 phar: ## it creates phar
 	rm -rf ${TMP_DIR} && mkdir -p ${TMP_DIR}
-	cp -R src bin-stub box.json README.md composer.json phparkitect-stub.php bin ${TMP_DIR}
+	cp -R src bin-stub box.json README.md composer.json phparkitect-stub.php bin scoper.inc.php ${TMP_DIR}
 	cd ${TMP_DIR} && composer install --prefer-source --no-dev -o
 	bin/box.phar compile -c ${TMP_DIR}/box.json
 	cp ${TMP_DIR}/phparkitect.phar .

box.json

@@ -12,6 +12,7 @@
   ],
   "compression": "GZ",
   "compactors": [
+    "KevinGH\\Box\\Compactor\\PhpScoper",
     "KevinGH\\Box\\Compactor\\Json"
   ],
   "main": "bin-stub/phparkitect",

scoper.inc.php

@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+return [
+    'prefix' => 'PhpArkitect',
+
+    'expose-global-constants' => true,
+    'expose-global-classes' => true,
+    'expose-global-functions' => true,
+
+    'exclude-namespaces' => [
+        'Arkitect',
+    ],
+];