Before spawning an agent (pi/zot), colibri-daemon now runs
/usr/local/bin/clawdie-hw-probe (if present) and passes the
JSON output as CLAWDIE_HW_PROFILE env var. Non-blocking:
probe failure or missing binary logs a warning and the agent
spawns normally without hw profile.
This gives agents immediate host awareness — USB names, GPU
capabilities, RAM, CPU, disks, ZFS pools — without running
probes themselves.
