Add starbuck and apollo as active/active app hosts (#21)

## Summary

- Closes [#20](#20).
- Register **starbuck** (`10.0.0.44`) and **apollo** (`10.0.0.7`) as Proxmox app hosts in `webservers`, with `host_apps` copied from **roslin** (same apps/ports; **no** `monica_site` worker — that stays a singleton on **adama**).
- Allow `starbuck` / `apollo` in `provision.sh` and `deploy.sh`; document inventory, NPM backends, and Alloy `host` labels.

## Test plan

- [ ] `ansible-inventory --list` shows both hosts under `webservers` at the expected IPs.
- [ ] Bootstrap SSH + passwordless sudo on each VM (keep a Proxmox console open for first UFW enable).
- [ ] `ansible starbuck,apollo -m ping`
- [ ] `./scripts/provision.sh starbuck --check` then `./scripts/provision.sh starbuck`
- [ ] `./scripts/provision.sh apollo --check` then `./scripts/provision.sh apollo`
- [ ] `./scripts/deploy.sh starbuck` and `./scripts/deploy.sh apollo` bring up the same app+env set as roslin.
- [ ] `monica_site` dj-queue worker still runs **only** on adama.
- [ ] Grafana/Loki show `host="starbuck"` and `host="apollo"`.
- [ ] NPM Advanced upstreams (manual): add `starbuck:PORT` and `apollo:PORT` beside adama/roslin.Reviewed-on: #21

inventory/host_vars/starbuck.yml

@@ -0,0 +1,18 @@
+---
+# Mirrors roslin for active/active. Ports MUST match adama/roslin so NPM
+# upstreams can balance starbuck:PORT with the other app hosts.
+host_apps:
+  - { name: company_site, env: prod, port: 8000 }
+  - { name: dta_service, env: prod, port: 8001 }
+  - { name: dta_service, env: beta, port: 8011 }
+  - { name: dta_webapp, env: prod, port: 8080 }
+  - { name: dta_webapp, env: beta, port: 8081 }
+  - { name: scha, env: prod, port: 8002 }
+  # optional: - { name: scha, env: beta, port: 8012 }
+  - { name: chat_web_app, env: prod, port: 8082 }
+  - { name: chat_web_app, env: beta, port: 8083 }
+  - { name: chat_backend, env: prod, port: 8003 }
+  - { name: chat_backend, env: beta, port: 8013 }
+  # monica_site worker NOT here — adama host_apps sets compose_profiles: [worker].
+  - { name: monica_site, env: prod, port: 8004 }
+  - { name: monica_site, env: beta, port: 8014 }