Add deployment script and documentation for Ubuntu setup

- Introduced `deploy-ubuntu.sh` for automated deployment of the AI Code Review Platform on Ubuntu with systemd.
- Added `UBUNTU_DEPLOYMENT.md` for detailed deployment instructions and requirements.
- Updated `README.md` to include quick deployment instructions and features of the new script.
- Created `uninstall-ubuntu.sh` for easy removal of the platform and its components.
- Enhanced logging and configuration setup within the deployment script.

uninstall-ubuntu.sh

@@ -0,0 +1,61 @@
+#!/bin/bash
+# Скрипт удаления AI Code Review Platform из Ubuntu
+
+set -e
+
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m'
+
+if [ "$EUID" -ne 0 ]; then 
+    echo -e "${RED}Ошибка: Этот скрипт должен быть запущен с sudo${NC}"
+    exit 1
+fi
+
+echo -e "${YELLOW}"
+echo "========================================="
+echo "  AI Code Review Platform - Удаление"
+echo "========================================="
+echo -e "${NC}"
+echo ""
+echo -e "${RED}⚠️  ВНИМАНИЕ: Это удалит все данные!${NC}"
+echo ""
+echo -e "Вы уверены? Введите 'yes' для подтверждения:"
+read -r confirmation
+
+if [ "$confirmation" != "yes" ]; then
+    echo "Отменено"
+    exit 0
+fi
+
+INSTALL_DIR="/opt/ai-review"
+
+echo -e "${YELLOW}[1/5] Остановка сервиса...${NC}"
+systemctl stop ai-review.service || true
+systemctl disable ai-review.service || true
+echo -e "${GREEN}✓ Сервис остановлен${NC}"
+
+echo -e "${YELLOW}[2/5] Удаление systemd service...${NC}"
+rm -f /etc/systemd/system/ai-review.service
+systemctl daemon-reload
+echo -e "${GREEN}✓ Service удален${NC}"
+
+echo -e "${YELLOW}[3/5] Удаление nginx конфигурации...${NC}"
+rm -f /etc/nginx/sites-enabled/ai-review
+rm -f /etc/nginx/sites-available/ai-review
+systemctl reload nginx 2>/dev/null || true
+echo -e "${GREEN}✓ Nginx конфигурация удалена${NC}"
+
+echo -e "${YELLOW}[4/5] Удаление файлов...${NC}"
+rm -rf "$INSTALL_DIR"
+echo -e "${GREEN}✓ Файлы удалены${NC}"
+
+echo -e "${YELLOW}[5/5] Удаление логов...${NC}"
+rm -rf /var/log/ai-review
+echo -e "${GREEN}✓ Логи удалены${NC}"
+
+echo ""
+echo -e "${GREEN}✓ AI Code Review Platform полностью удален${NC}"
+echo ""
+