fix: shop.service — wait-postgres, диагностика, права .env

Co-authored-by: Cursor <cursoragent@cursor.com>

wiki/Troubleshooting.md

@@ -52,6 +52,32 @@ cp /opt/shop/shop10.bak.*/.env /opt/shop/shop10/.env 2>/dev/null || cp /opt/shop
 bash /opt/shop/shop10/scripts/server-update.sh
 ```
 
+## Job for shop.service failed (control process exited)
+
+Чаще всего не запущен PostgreSQL или не прошёл `ExecStartPre`:
+
+```bash
+cd /opt/shop/shop10
+git pull
+sudo bash scripts/install-postgresql-ubuntu.sh
+bash scripts/setup-postgres-ubuntu.sh
+sudo bash scripts/install-shop-service.sh
+```
+
+Диагностика:
+
+```bash
+bash /opt/shop/shop10/scripts/diagnose-shop-service.sh
+journalctl -u shop -n 50 --no-pager
+```
+
+Скопировать старый `.env`:
+
+```bash
+cp /opt/shop/.env /opt/shop/shop10/.env
+sudo bash /opt/shop/shop10/scripts/install-shop-service.sh
+```
+
 ## Служба shop не установлена
 
 Код обновился, но systemd unit не настроен: