v0.4.0

Crewbox box builds

One file, no install: download the binary for the machine that
will be the crew box, run it, and scan the QR it prints (or open
/connect on any screen). A fresh box mints its own event PIN.

Platform	File
Linux x64	crewbox-linux-x64
Windows x64	crewbox-win32-x64.exe
macOS (Apple Silicon)	crewbox-darwin-arm64
Android (sideload)	crewbox.apk — or drop it into the box's data dir to serve it at /crewbox.apk

macOS/Windows will warn about an unsigned binary on first launch
(macOS: right-click → Open). On Linux: chmod +x then run.

Voice runs inside the box — nothing else to install. For a
dedicated festival rig (HTTPS so browsers get the mic, local
DNS, UPS), deploy/RUNBOOK.md is the day-of checklist.