feat: add systemd service template and installer for production 1.3.1

export_prod.sh

@@ -22,6 +22,8 @@ rsync -a --exclude '__pycache__' --exclude '.pytest_cache' --exclude '.venv' bac
 cp docker-compose.yml "$PROD_DIR/"
 cp Caddyfile "$PROD_DIR/"
 cp start_server.sh "$PROD_DIR/"
+cp install_service.sh "$PROD_DIR/"
+cp inventory.service.template "$PROD_DIR/"
 cp .git_path "$PROD_DIR/" 2>/dev/null || true
 cp VERSION.json "$PROD_DIR/"
 
@@ -41,6 +43,10 @@ TO RUN VIA DOCKER (Recommended):
 3. Run: docker-compose up -d
 4. Access via https://<YOUR-IP>:3003 (Accept the internal security warning).
 
+TO INSTALL AS A LINUX SYSTEM SERVICE (Optional):
+1. sudo ./install_service.sh
+2. sudo systemctl start inventory
+
 TO RUN BARE-METAL (No Docker):
 1. Install Python 3.12+ and Node.js 20+.
 2. Ensure you have network access for npm installs.