orphaned-claude-sessions-accumulate-600mb-ram-each

Stale Claude Code sessions (idle 3h-2 days, reparented to systemd or SSH parent) each consume 400-640 MB RSS and do not self-terminate. Three such sessions consumed ~1.5 GB total and contributed 7+ load points on an 8 vCPU server. Kill by PID after confirming reparent via ps --ppid 1 or SSH orphan detection.