micro:bit V2 emulator firmware bases (Bluetooth-free)

Bluetooth-free CODAL micro:bit V2 bases for running MakeCode programs in the LabWired emulator, built by the makecode-arcade-bases workflow (emu-bases job, run 38091323448) from scripts/build-makecode-emu-bases.mjs. Pinned by sha256 in scripts/sync-makecode-runtime.mjs (MICROBIT_EMU_BASES). Not for download to a real board. Component licences: NOTICE.md.