feat(install): add Linux server systemd installation script

compilation/install_linux_server.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+INSTALL_DIR="/opt/logar-server"
+CONFIG_DIR="/etc/logar"
+
+echo "[+] Installing LOGAR Server..."
+mkdir -p "${INSTALL_DIR}" "${CONFIG_DIR}" "/var/log/logar"
+
+if [ -f "dist/Server.bin" ]; then
+    cp dist/Server.bin "${INSTALL_DIR}/Server"
+elif [ -f "dist/Server" ]; then
+    cp dist/Server "${INSTALL_DIR}/Server"
+elif [ -f "dist/LOGAR_Server" ]; then
+    cp dist/LOGAR_Server "${INSTALL_DIR}/Server"
+else
+    echo "[!] Warning: dist/Server.bin binary not found in current directory. Continuing with existing binary if present."
+fi
+
+if [ -f "${INSTALL_DIR}/Server" ]; then
+    chmod +x "${INSTALL_DIR}/Server"
+fi
+
+cat <<EOF > /etc/systemd/system/logar-server.service
+[Unit]
+Description=LOGAR Hub and Aggregator Engine
+After=network.target
+
+[Service]
+Type=simple
+WorkingDirectory=${INSTALL_DIR}
+ExecStart=${INSTALL_DIR}/Server --config ${CONFIG_DIR}/server_config.json
+Restart=always
+RestartSec=5s
+User=root
+LimitNOFILE=65536
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+if command -v systemctl >/dev/null 2>&1; then
+    systemctl daemon-reload
+    systemctl enable --now logar-server.service || true
+    echo "[+] LOGAR Server service installed and activated."
+else
+    echo "[+] Systemd service installed at /etc/systemd/system/logar-server.service"
+fi