Fix deploy error handler: cd to safe dir before pm2

.gitea/workflows/deploy.yaml

@@ -241,6 +241,7 @@ jobs:
           CUTOVER_STARTED=0
 
           error_handler() {
+            cd /var/www/atom-nexst 2>/dev/null || cd / || true
             echo "!!! DEPLOYMENT FAILED on line $1 !!!" >&2
             # Roll back the build artifact if cutover already moved .next into place.
             if [ "${CUTOVER_STARTED}" = "1" ] && [ -d "${LIVE}/.next.prev" ]; then
@@ -251,7 +252,7 @@ jobs:
             if [ -n "${STAGE}" ] && [ -d "${STAGE}" ]; then
               git -C "${LIVE}" worktree remove --force "${STAGE}" 2>/dev/null || rm -rf "${STAGE}" || true
             fi
-            pm2 start next || true
+            pm2 start next --update-env 2>/dev/null || pm2 restart next --update-env 2>/dev/null || true
             exit 1
           }
           trap 'error_handler $LINENO' ERR