feat: интерактивный установщик install.sh (Docker / Ubuntu, админ, БД)

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

docker-compose.yml

@@ -23,6 +23,8 @@ services:
     build: .
     container_name: shop-app
     restart: unless-stopped
+    env_file:
+      - .env
     depends_on:
       postgres:
         condition: service_healthy
@@ -31,7 +33,6 @@ services:
       HOST: 0.0.0.0
       PORT: 3000
       TRUST_PROXY: ${TRUST_PROXY:-0}
-      SESSION_SECRET: ${SESSION_SECRET:-change-me-in-docker-compose-env}
       DATABASE_URL: postgresql://${POSTGRES_USER:-shop}:${POSTGRES_PASSWORD:-shop}@postgres:5432/${POSTGRES_DB:-shop}
     ports:
       - '${APP_PORT:-3000}:3000'