feat: landing zone backup to R2 via rclone + Litestream

Landing files (append-only JSON.gz) synced to R2 every 30 min via
systemd timer + rclone. Extraction state DB (.state.sqlite) continuously
replicated via Litestream (second DB entry). Auto-restore on container
startup for both app.db and .state.sqlite. Reuses existing R2 bucket
and credentials — no new env vars needed.

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

infra/setup_server.sh

@@ -38,6 +38,32 @@ else
     echo "Deploy key already exists, skipping"
 fi
 
+# Install rclone (landing zone backup to R2)
+if ! command -v rclone &>/dev/null; then
+    echo "Installing rclone..."
+    curl -fsSL https://rclone.org/install.sh | bash
+    echo "Installed rclone $(rclone version --check | head -1)"
+else
+    echo "rclone already installed, skipping"
+fi
+
+# Create landing data directory
+mkdir -p /data/padelnomics/landing
+echo "Created /data/padelnomics/landing"
+
+# Install and enable landing backup timer
+cp "$APP_DIR/infra/landing-backup/padelnomics-landing-backup.service" /etc/systemd/system/
+cp "$APP_DIR/infra/landing-backup/padelnomics-landing-backup.timer" /etc/systemd/system/
+systemctl daemon-reload
+systemctl enable --now padelnomics-landing-backup.timer
+echo "Enabled landing backup timer (every 30 min)"
+
+# Install and enable supervisor service
+cp "$APP_DIR/infra/supervisor/padelnomics-supervisor.service" /etc/systemd/system/
+systemctl daemon-reload
+systemctl enable --now padelnomics-supervisor.service
+echo "Enabled supervisor service"
+
 echo ""
 echo "=== Next steps ==="
 echo "1. Add this deploy key to GitLab (Settings → Repository → Deploy Keys, read-only):"