Add one-liner Proxmox LXC installer

deploy/proxmox-install.sh bootstraps a fresh LXC end-to-end: apt
prereqs, Go toolchain (if missing), git clone, build, then hands off
to deploy/install.sh. README documents the curl|bash invocation.

README.md

@@ -41,11 +41,29 @@ PXE boot), see [docs/operations.md § First vetting run](docs/operations.md#firs
 
 ## Production install (Proxmox LXC)
 
+On a fresh Debian/Ubuntu LXC, as root:
+
+```bash
+curl -fsSL https://gitea.thewrightserver.net/josh/Vetting/raw/branch/main/deploy/proxmox-install.sh | bash
+```
+
+That installs Go (if missing), clones the repo to `/opt/vetting-src`,
+builds `vetting-linux-amd64`, and hands off to `deploy/install.sh` —
+which lays down the binary, systemd unit, example config, and
+`vetting` service user. Then:
+
+```bash
+# Edit /etc/vetting/vetting.yaml (bcrypt password, session secret, public URL)
+sudo systemctl enable --now vetting
+journalctl -fu vetting
+```
+
+Prefer to build yourself? The manual path:
+
 ```bash
 make orchestrator-linux
 scp -r bin deploy lxc:/opt/vetting/
 ssh lxc "cd /opt/vetting && sudo ./deploy/install.sh"
-# Edit /etc/vetting/vetting.yaml, then:
 ssh lxc "sudo systemctl enable --now vetting"
 ```