Add initial infrastructure and backup scripts for Gitea and homelab deployment

- Create README.md with project layout and quick start instructions
- Implement backup scripts for Gitea, including database and repository exports
- Add systemd service and timer for automated Gitea backups
- Develop bootstrap scripts for homelab and VPS setup
- Document architecture and restore procedures
- Configure Caddy reverse proxy and Docker Compose for service management
- Establish secrets management guidelines

backups/systemd/gitea-backup.service

@@ -0,0 +1,7 @@
+[Unit]
+Description=Run Gitea backup scripts
+After=docker.service
+
+[Service]
+Type=oneshot
+ExecStart=/bin/bash -lc '/srv/ops/backups/scripts/gitea-dump.sh && /srv/ops/backups/scripts/pg-dump.sh && /srv/ops/backups/scripts/gitea-mirror-export.sh && /srv/ops/backups/scripts/ops-bundle.sh && /srv/ops/backups/scripts/retention.sh'