v0.2.0 — Monitoring, security reporting, and cron auditing New scripts (4): - disk/disk-alert.sh — disk usage monitor with warn/crit thresholds - monitoring/service-watchdog.sh — auto-restart downed systemd services - security/fail2ban-report.sh — attack summary, top offenders, recent bans - cron/cron-audit.sh — all scheduled jobs in one unified view Bug fixes: - ssl/ssl-expiry-check.sh: fixed silent exit on unreachable domains (set -e + pipeline) Docs: - Improved README: ToC, real curl commands, status table, script template - Added CONTRIBUTING.md with script requirements and review expectations Tested on: Ubuntu 22.04 LTS, Ubuntu 24.04 LTS