2026-08-31 (payload verb) - canonized the payload round-trip as ./bin/obscene payload

The package round-trip has been a verb (deploy) since D269; the payload round-trip was still hand-assembled bash each time (hw logs & ; hw send ; grep), and it bit twice - wsl.exe … bash -lc '...' mangles inline shell variables under Git Bash, so T=$HOME/...; "$T" hw send silently ran as empty and captured nothing. Added ./bin/obscene payload (scripts/payload-run.sh): make payload + raw klog capture (raw, not the OBS-filtered report, so a crash's signo: line survives) + hw send, reporting whether the payload ran or took a signal. No Windows half (all out-connections); re-enters WSL itself from a Windows shell. --build-only/--seconds/--into/--name/-- MAKEFLAGS. D273. Also surfaced the finding it was chasing: the full 9.3 MB payload takes a fatal signal under elfldr (signo 0xa0020328, rip 0x2005cc299, no OBS records) - crashing on load/entry, not just failing to phone home.