chore : bump version to 0.2.3 and add Monolog logging

Add symfony/monolog-bundle with rotating file logs in dev (7 days)
and fingers_crossed + rotating file in prod (30 days).
Deploy script now ensures var/log/ permissions.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

script/deploy-release.sh

@@ -80,6 +80,11 @@ fi
 
 echo "Release ${TAG} deployed to ${DEPLOY_DIR}"
 
+# Ensure var/log exists and is writable by PHP (www-data)
+mkdir -p "${DEPLOY_DIR}/var/log"
+chown www-data:www-data "${DEPLOY_DIR}/var/log"
+chmod 775 "${DEPLOY_DIR}/var/log"
+
 if [ -f "${DEPLOY_DIR}/.env.local" ]; then
   echo "Clearing cache..."
   php "${DEPLOY_DIR}/bin/console" cache:clear --env=prod --no-debug