feat: initial zROC project recreation (stubs for large files pending)

- 61 files across zroc-ui/ and zroc-ova/ directories
- Full content written for: config, auth, API layers, CSS, build files,
  OVA scripts, backend routes, charts, hooks, constants
- Stubs in place for: page components, Sidebar, TopBar, docker-compose,
  authentik client, blueprint YAML, packer HCL, workflows, setup wizard

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

zroc-ova/scripts/04-systemd-service.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# zroc-ova/scripts/04-systemd-service.sh
+set -euo pipefail
+echo "==> [04-systemd-service] Installing zroc.service"
+
+cat > /etc/systemd/system/zroc.service << 'EOF'
+[Unit]
+Description=zROC Observability Stack
+Documentation=https://github.com/ZertoPublic/zroc
+After=docker.service network-online.target
+Requires=docker.service
+Wants=network-online.target
+
+[Service]
+Type=oneshot
+RemainAfterExit=yes
+User=zroc
+Group=zroc
+WorkingDirectory=/opt/zroc
+EnvironmentFile=-/opt/zroc/.env
+ExecStartPre=/usr/bin/docker compose pull --quiet
+ExecStart=/usr/bin/docker compose up -d --remove-orphans
+ExecStop=/usr/bin/docker compose down
+ExecReload=/usr/bin/docker compose up -d --remove-orphans
+TimeoutStartSec=180
+TimeoutStopSec=60
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+systemctl daemon-reload
+echo "==> [04-systemd-service] Done"