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/scripts/gitea-dump.sh

@@ -0,0 +1,12 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+TS="$(date +%F_%H%M%S)"
+OUT="/srv/backups/gitea/dumps"
+mkdir -p "$OUT"
+
+docker exec gitea sh -lc "gitea dump -c /data/gitea/conf/app.ini -f /tmp/gitea-dump-$TS.zip"
+docker cp "gitea:/tmp/gitea-dump-$TS.zip" "$OUT/"
+docker exec gitea rm -f "/tmp/gitea-dump-$TS.zip"
+
+echo "Wrote: $OUT/gitea-dump-$TS.zip"