SMP: Minecraft-style join window with live status; allow beta tunnel origin for dev HMR

README.md

@@ -37,6 +37,9 @@ heatmap**, a gym SBD panel and links to friends' sites.
   Jellyfin, Navidrome, GitDXD) from the desktop shows the real site inside the window (an
   iframe). The service must allow framing; SMP (Discord) keeps a link card because Discord
   sends `X-Frame-Options: DENY`.
+- **Minecraft-style SMP window** — the SMP shortcut opens a join menu modelled on
+  Minecraft's multiplayer screen, with live status, player count, MOTD and version pulled
+  from mcstatus.io through the site's own ping API.
 - **Live GitDXD stats** — contribution heatmap + latest commit activity proxied server-side
   from the self-hosted Forgejo instance.
 - **Extras** — a playable `Revival Inc.` game embedded at `/revival-inc`, `llms.txt`,
@@ -92,7 +95,9 @@ Handy checks before shipping: `npx tsc --noEmit`, `npx eslint <files>`, `npm run
 ### Testing from a phone on your LAN
 
 `next.config.ts` sets `allowedDevOrigins` so the dev server can be reached from other devices
-on the local network (otherwise Next.js 403s the dev asset requests).
+on the local network and from the `beta.dvorakmortonxd.dev` tunnel. Without it Next.js
+rejects the dev asset requests *and* the HMR WebSocket, which leaves the page un-hydrated
+(stacked icons, dead buttons).
 
 ## 📡 API Routes