- deploy.sh: add 'ip link del wg0' cleanup in force_stop() for both machines
- deploy.sh: add wg0 cleanup before container start (idempotent re-run)
- Fixes 'wg-quick: wg0 already exists' crash on redeploy
- deploy.sh: generates all 4 WG keys locally, SCPs project to both
machines, starts containers, verifies tunnel — zero manual steps
- deploy.sh: supports --vps-pass and --client-pass for password auth
- deploy.sh: auto-detects VPS public IP and network interface
- deploy.sh: stops host-level WG, enables IP forwarding, health checks
- deploy.sh: idempotent, --force flag for clean redeploy
- install.sh: added --server-key and --client-key args for non-interactive
- README.md: added 1-Command Deployment section at the top
