feat(deploy): add full-reset command for complete system reset

- Add do_full_reset function that deletes all data and rebuilds system
- Preserves SSL certificates (stored in /etc/letsencrypt/)
- Requires explicit YES confirmation before proceeding
- Includes: stop services, clean Docker, rebuild, migrate, restart

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

deploy.sh

@@ -906,6 +906,87 @@ do_deploy_full() {
     echo ""
 }
 
+#===============================================================================
+# 完整重置 (危险操作)
+#===============================================================================
+do_full_reset() {
+    echo -e "${RED}╔═══════════════════════════════════════════════════════════════════════════════╗${NC}"
+    echo -e "${RED}║                              ⚠️  警告 ⚠️                                       ║${NC}"
+    echo -e "${RED}║                                                                               ║${NC}"
+    echo -e "${RED}║   这将删除所有数据并重置系统，包括：                                          ║${NC}"
+    echo -e "${RED}║   - PostgreSQL 数据库中的所有数据                                             ║${NC}"
+    echo -e "${RED}║   - Redis 缓存数据                                                            ║${NC}"
+    echo -e "${RED}║   - Neo4j 图数据库中的所有数据                                                ║${NC}"
+    echo -e "${RED}║   - 所有 Docker 镜像和容器                                                    ║${NC}"
+    echo -e "${RED}║   - 所有构建产物                                                              ║${NC}"
+    echo -e "${RED}║                                                                               ║${NC}"
+    echo -e "${RED}║   SSL 证书将被保留（存储在 /etc/letsencrypt/）                                ║${NC}"
+    echo -e "${RED}║   此操作不可撤销！                                                            ║${NC}"
+    echo -e "${RED}╚═══════════════════════════════════════════════════════════════════════════════╝${NC}"
+    echo ""
+    read -p "确认要完全重置系统吗？请输入 YES 确认: " confirm
+
+    if [ "$confirm" != "YES" ]; then
+        log_info "操作已取消"
+        exit 0
+    fi
+
+    log_warning "开始完整重置..."
+
+    # 1. 停止所有服务
+    log_step "停止所有服务..."
+    $DOCKER_COMPOSE down -v --remove-orphans 2>/dev/null || true
+    log_success "服务已停止"
+
+    # 2. 清理 Docker 资源
+    log_step "清理 Docker 资源..."
+    docker system prune -af --volumes 2>/dev/null || true
+    docker volume prune -f 2>/dev/null || true
+    log_success "Docker 资源已清理"
+
+    # 3. 清理构建产物和依赖
+    log_step "清理构建产物..."
+    rm -rf node_modules 2>/dev/null || true
+    for dir in "${SERVICE_DIRS[@]}"; do
+        rm -rf "$PROJECT_ROOT/$dir/dist" 2>/dev/null || true
+        rm -rf "$PROJECT_ROOT/$dir/node_modules" 2>/dev/null || true
+    done
+    log_success "构建产物已清理"
+
+    # 4. 重新构建所有服务
+    log_step "重新构建所有服务..."
+    do_build all
+
+    # 5. 启动基础设施
+    log_step "启动基础设施..."
+    do_start infra docker
+
+    # 6. 等待数据库就绪
+    wait_for_service localhost 5432 "PostgreSQL"
+    wait_for_service localhost 6379 "Redis"
+    wait_for_service localhost 7474 "Neo4j"
+
+    # 7. 执行数据库迁移
+    log_step "执行数据库迁移..."
+    sleep 5  # 等待数据库完全初始化
+    do_db migrate
+
+    # 8. 启动所有后端服务
+    log_step "启动后端服务..."
+    do_start backend docker
+
+    # 9. 配置 Kong (如果需要)
+    if docker ps | grep -q kong; then
+        log_step "配置 Kong API 网关..."
+        sleep 5
+        do_kong setup 2>/dev/null || log_warning "Kong 配置跳过"
+    fi
+
+    log_success "完整重置完成！"
+    echo ""
+    do_status
+}
+
 #===============================================================================
 # SSL 证书管理 (Let's Encrypt)
 #===============================================================================
@@ -1327,6 +1408,8 @@ show_help() {
 
   deploy-full             完整部署 (含 SSL 证书自动申请)
 
+  full-reset              ⚠️ 完整重置 (删除所有数据，重建系统，保留SSL证书)
+
   ssl <action>            SSL 证书管理 (Let's Encrypt)
                           action: install   - 安装 certbot
                                   obtain    - 申请证书
@@ -1356,6 +1439,7 @@ show_help() {
   ./deploy.sh restart user docker       # 重启用户服务 (Docker)
   ./deploy.sh logs conversation 200     # 查看对话服务最近200行日志
   ./deploy.sh clean all                 # 清理所有构建产物和依赖
+  ./deploy.sh full-reset                # ⚠️ 完整重置系统 (危险操作)
   ./deploy.sh db init                   # 初始化数据库 (首次部署)
   ./deploy.sh db backup                 # 备份数据库
   ./deploy.sh db migrate                # 执行数据库迁移
@@ -1413,6 +1497,9 @@ main() {
         deploy-full)
             do_deploy_full
             ;;
+        full-reset)
+            do_full_reset
+            ;;
         ssl)
             do_ssl "$@"
             ;;