Single .gitea/workflows/build.yml shared by both branches; the checked-out
ref selects the channel, so no per-branch copies.
- dev push -> builds all development images (kiosk, commercial, android, rpi)
- new tag -> builds all production images; manual dispatch also supported
- Raspberry Pi sdImage built on orion-lxc via aarch64 emulation
- production-only baseline preflight (skipped on the dev channel)
- artifact names standardized to radiantwave-<variant>-<prod|dev>-<timestamp>
