fix: OCR 在一键部署时注册 systemd 开机自启

EOF

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

deploy/install.sh

@@ -207,17 +207,17 @@ setup_backend() {
 }
 
 setup_ocr_gpu() {
-  if command -v nvidia-smi >/dev/null; then
-    log_info "检测到 NVIDIA GPU，OCR 将常驻显存 (screen)"
+  if command -v nvidia-smi >/dev/null && nvidia-smi >/dev/null 2>&1; then
+    log_info "检测到可用 NVIDIA GPU"
     nvidia-smi --query-gpu=name,memory.total --format=csv,noheader 2>/dev/null || true
   else
-    log_warn "未检测到 NVIDIA GPU，OCR 将使用 CPU（较慢）"
+    log_warn "未检测到可用 NVIDIA GPU，OCR 将使用 CPU（systemd 开机自启）"
   fi
   if [[ -x "${INSTALL_DIR}/deploy/install-ocr-deps.sh" ]]; then
     bash "${INSTALL_DIR}/deploy/install-ocr-deps.sh" || log_warn "OCR 系统库安装跳过"
   fi
   install_ocr_worker
-  start_ocr_screen
+  start_ocr_service
   wait_ocr_healthy 30 || log_warn "OCR 后台加载中，继续安装主程序…"
 }
 
@@ -286,11 +286,11 @@ print_summary() {
   echo "  访问:     http://${ip}:${WEB_PORT}"
   echo "  管理员:   admin / admin123（请立即修改）"
   echo ""
-  echo "  【同机 OCR — GPU 常驻 screen】"
+  echo "  【同机 OCR — systemd 开机自启】"
   echo "  OCR 地址: http://127.0.0.1:${OCR_PORT}"
-  echo "  状态:     bash ${INSTALL_DIR}/deploy/ocr-screen.sh status"
-  echo "  进入终端: screen -r ocr-worker  (Ctrl+A D 退出)"
-  echo "  重启 OCR: bash ${INSTALL_DIR}/deploy/ocr-screen.sh restart"
+  echo "  状态:     systemctl status ocr-worker"
+  echo "  重启 OCR: systemctl restart ocr-worker"
+  echo "  日志:     journalctl -u ocr-worker -f"
   echo ""
   echo "  【Ollama — 其他电脑】"
   echo "  地址:     ${OLLAMA_BASE_URL}"
@@ -306,7 +306,7 @@ print_summary() {
 }
 
 main() {
-  log_info "一键部署开始（主程序 + OCR/GPU/screen | Ollama 外置）"
+  log_info "一键部署开始（主程序 + OCR/systemd | Ollama 外置）"
   require_root
   setup_deploy_proxy
   check_os