* tests: automated headless FreeDOS QEMU smoke
Fully-automated counterpart to the manual run_freedos_qemu.sh: overlays the
FreeDOS image (no mutation), stages the interpreter and a SYSTEM-terminated
smoke on C:, injects the run plus poweroff into the image's startup batch,
boots headless, and diffs OUT.TXT against the golden file. Local-dev only
(needs qemu, a FreeDOS qcow2, mtools, nbd, and passwordless sudo); CI keeps
using the DOSBox-X path. Exercises the binary on a real FreeDOS install
rather than DOSBox-X emulation.
* Release 0.18.0
Cross-language linking (link BASIC into C/Fortran, call C from BASIC via
'$EXTERN), the v0.18 codegen/perf batch (paren string-comparison fix,
--no-gc-check/--fast-math, larger 32-bit caps, process-local DATE$/TIME$),
and the automated FreeDOS QEMU smoke. Bumps GW_VERSION and updates the
banners, CHANGES.TXT, and the development history table.
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Co-authored-by: Eremey Valetov <evvaletov@users.noreply.github.com>
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