wiki: cross-link uos-server <-> pfsense (unifi-wifi skill halves); add uos-server to index

wiki/index.md

@@ -88,6 +88,7 @@ Run `/wiki-lint` to check for stale entries and broken backlinks.
 | [Uranus](systems/uranus.md) | 172.16.3.21 — Unraid secondary (Dell R730xd); OwnCloud archive storage only; formerly Saturn's IP (reused Apr 2026); RAM too low for VMs | 2026-05-24 |
 | [IX Web Hosting Server](systems/ix-server.md) | 172.16.3.10 / 72.194.62.5 — cPanel/WHM 134 on CloudLinux 9.7 (64-core Xeon, 4.4 T /home); **72 cPanel accounts / 185 domains / 101 WordPress** + ACG sites (radio Astro, Flarum community, Matomo analytics); GuruRMM-enrolled; SSH key auth from GURU-5070; behind Cloudflare tunnel `acg-origin`; **backups look unconfigured (gap)**. Live SSH inventory 2026-06-05 — full account→domain map in the article | 2026-06-05 |
 | [pfsense (ACG Gateway/Firewall)](systems/pfsense.md) | 172.16.0.1 (SSH :2248) — ACG office FreeBSD gateway/firewall + Tailscale subnet router. ALSO the home of the **fleet-wide pfSense management tooling** in the `unifi-wifi` skill: SSH backend (`pfsense-ssh.sh` + `pfsense-gwc.php`) that audits/controls ANY client pfSense — `audit`/`pf-*`/`fw-*`/`block-ips`, DRY-RUN default, cred `clients/<slug>/pfsense-firewall`. Validated on Cascades (Plus 25.07) 2026-06-21 | 2026-06-21 |
+| [UOS Server (UniFi OS Server)](systems/uos-server.md) | 172.16.3.29 (web/API :11443 via NPM, **not** 8443) — self-hosted UniFi OS controller (~49 sites), virsh "Unifi" VM on Jupiter; UniFi Network `ace` MongoDB in rootless podman; query via `.claude/scripts/uos-mongo.sh` (root SSH key `infrastructure/uos-server-ssh-key`). UniFi half of the `unifi-wifi` skill — pairs with [pfsense](systems/pfsense.md) at UniFi-behind-pfSense sites | 2026-06-21 |
 
 ## Patterns