feat(apps): MagicMirror as a Void app (#/mirror, mirror.hynesy.com)

Embed MagicMirror² (CT 111) via the shared embedView factory, exposed at
mirror.hynesy.com through Traefik + CF Access. Traefik mirror-frame middleware
swaps MM's X-Frame-Options for a CSP frame-ancestors allowing the Void origins.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

CHANGELOG.md

@@ -3,6 +3,11 @@
 All notable changes to Void 2.0 are documented here.
 Format: [Keep a Changelog](https://keepachangelog.com).
 
+## 2.3.0 — MagicMirror² as a Void app
+- **New "MagicMirror" Apps view** (`#/mirror`, `public/views/mirror.js`) — embeds the smart-mirror dashboard (CT 111) via the shared `embedView` factory, like Timelapse / AI Usage.
+- **Exposure:** MagicMirror (LAN-only `192.168.1.224:8080`) is now published at **mirror.hynesy.com** through Traefik + the `*.hynesy.com` tunnel, private behind **CF Access** (Farm policy / Google IdP). A Traefik `mirror-frame` middleware replaces MM's `X-Frame-Options: SAMEORIGIN` with a CSP `frame-ancestors` allowing the Void origins so the iframe renders.
+- Unrelated to the Void code: CT 111 itself was updated **MagicMirror 2.25.0 → 2.36.0** on **Node 22**.
+
 ## 2.2.0 — Links: self-hosted URL shortener (Kutt) as a Void app
 - **New "Links" Apps view** (`#/links`, `public/views/links.js`) — a Void-native card (Kutt **version / update tracker** + one-field **quick-add shortener**) on top of the blackflame-themed **Kutt** UI embedded via iframe (`link.hynesy.com`). Hybrid model: native convenience + the full Kutt UI in one tab.
 - **`/api/kutt` proxy** (`lib/api/routes/kutt.js`, `lib/links/kutt.js`) — owner-gated server-side proxy that holds the Kutt API key (`GET /version` vs latest GitHub release, cached 6h; `POST /` create; `GET /recent`). The key never reaches the browser. *(Mounted at `/api/kutt`, not `/api/links` — the latter is the Void's existing internal cross-entity linking router.)*