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vhaudiquet
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The run interface read like a library's. `ecrou run -it alpine` now hands the guest a terminal: with no console output file, libkrun wires the guest console to the process's own stdio and raw-modes the tty. The parent saves and restores the termios around the run, because libkrun's own restore lives in the child's exit observers, which a SIGKILLed machine never runs. A tty run refuses to start without a terminal on stdin and stdout, and --capture refuses to combine with -t: the payload's streams cannot land in files and on the terminal at once. -i without -t keeps the machine's stdin open through pipes: libkrun exposes the non-tty streams as virtio console ports (krun-stdin, krun-stdout, krun-stderr), and the guest init points the payload's stdio at whichever port nodes exist. `echo hi | ecrou run -i alpine -- cat` crosses the machine; a stream the host left on a tty has no port node and stays on the console. -v (--volume HOST:GUEST[:ro]) replaces --share, and -w aliases --workdir. The global -v/--verbose loses its short flag to make room; verbose stays reachable by its long form. A reference starting with ./, ../ or / names a local rootfs archive: read in place on every run, never downloaded, never cached as a pristine entry. Provisioning over one persists into a derived cache entry keyed by size and mtime, so the caller's file is never overwritten and an edited archive lands in a fresh entry.