A. ZOT_VERSION drift: build.cfg defaulted to v0.2.42 while build.sh
preflight hint said v0.2.47. Now both default to v0.2.47.
B. AGENTS.md hw-probe phrasing: told zot to run clawdie-hw-probe,
but the daemon already collects it into CLAWDIE_HW_PROFILE at
autospawn time. zot should read the env var, not shell out.
C. RPC_PROMPT missing: COLIBRI_AUTOSPAWN=YES starts zot in RPC mode,
but without RPC_PROMPT, zot blocks on stdin and idles. Added
a prompt telling zot to read CLAWDIE_HW_PROFILE, call node_register
on mother, and report its assigned capabilities.