fix: ожидание PostgreSQL при старте, скрипт fix-db-connection

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

scripts/setup-postgres-ubuntu.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# PostgreSQL 17 на Ubuntu — пользователь и БД для магазина
+# PostgreSQL 17 на Ubuntu — установка службы, пользователь и БД shop
 # Запуск: sudo bash scripts/setup-postgres-ubuntu.sh
 set -euo pipefail
 
@@ -8,11 +8,29 @@ DB_PASS="${DB_PASS:-shop}"
 DB_NAME="${DB_NAME:-shop}"
 
 if ! command -v psql >/dev/null; then
-  echo "Установите PostgreSQL 17:"
+  echo "PostgreSQL не установлен."
   echo "  apt install -y postgresql-17 postgresql-client-17"
+  echo "  systemctl enable --now postgresql"
   exit 1
 fi
 
+echo "Запуск PostgreSQL..."
+systemctl enable postgresql 2>/dev/null || true
+systemctl start postgresql
+
+for i in $(seq 1 30); do
+  if pg_isready -h 127.0.0.1 -p 5432 -q 2>/dev/null; then
+    break
+  fi
+  sleep 1
+  if [ "$i" -eq 30 ]; then
+    echo "Ошибка: PostgreSQL не слушает 127.0.0.1:5432"
+    echo "  journalctl -u postgresql -n 30 --no-pager"
+    exit 1
+  fi
+done
+
+echo "Создание пользователя и базы..."
 sudo -u postgres psql -v ON_ERROR_STOP=1 <<EOF
 DO \$\$
 BEGIN
@@ -24,9 +42,17 @@ END
 
 SELECT 'CREATE DATABASE ${DB_NAME} OWNER ${DB_USER}'
 WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = '${DB_NAME}')\gexec
+EOF
 
-GRANT ALL PRIVILEGES ON DATABASE ${DB_NAME} TO ${DB_USER};
+sudo -u postgres psql -v ON_ERROR_STOP=1 -d "${DB_NAME}" <<EOF
+GRANT ALL ON SCHEMA public TO ${DB_USER};
+ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON TABLES TO ${DB_USER};
+ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT ALL ON SEQUENCES TO ${DB_USER};
 EOF
 
 echo ""
+echo "PostgreSQL готов."
+echo "Добавьте в /opt/shop/.env:"
 echo "DATABASE_URL=postgresql://${DB_USER}:${DB_PASS}@127.0.0.1:5432/${DB_NAME}"
+echo ""
+echo "Проверка: psql \"postgresql://${DB_USER}:${DB_PASS}@127.0.0.1:5432/${DB_NAME}\" -c 'SELECT 1'"