Pull Proxmox LXC app configs via SSH and document all CTs.

Add pull-lxc-from-proxmox.py using Proxmox API + pct exec for running
containers (vaultwarden, linkwarden, paymenter, NPM, etc). Stub apps for
stopped LXCs with proxmox.meta.yaml and updated lxc-inventory with live IPs.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/vaultwarden/docker-compose.yml

@@ -0,0 +1,6 @@
+# Vaultwarden draait als systemd-service in LXC 104 (niet Docker).
+# Config: config/.env + Proxmox CT-definitie in apps/proxmox/hosts/pve/lxc/104.conf
+# URL: https://192.168.1.6:8000 (Homarr) — huidig IP: zie proxmox.meta.yaml
+
+# Optioneel: playwright sub-stack
+# config/compose-*-vaultwarden_playwright_docker-compose.yml