Migrating from the legacy scripts

The stayawake-security-* console scripts have been removed; saw is the only local security surface. The stayawake-health-* scripts are unchanged.

Legacy command (removed)	saw equivalent
stayawake-security-scan	saw scan (the exit code is the verdict — no flag)
stayawake-security-report	saw scan (the report renders to the terminal)
stayawake-security-alert	saw scan --alert
stayawake-security-remediate [--apply --open-pr\|--remote]	saw fix [--pr\|--remote]
stayawake-security-audit --repo OWNER/NAME --fail-on-issues	saw audit --repo OWNER/NAME -f