chore: bootstrap lean sysadmin-chronicles repo

Import the runnable game code, content, docs, scripts, and repo guidance while leaving local agent state, dependency installs, build output, and backup copies out of the published tree.

content/docs/incident-response-guide.json

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+{
+  "id": "incident-response-guide",
+  "title": "Incident Response Procedures",
+  "body": "Severity levels\nCritical: site down.\nHigh: degraded service or data risk.\nMedium: noisy issue with no immediate impact.\nLow: cosmetic issue.\n\nFirst steps for any incident\nConfirm the issue is real and not a false alert.\nIdentify the affected systems.\nCheck logs before touching anything.\n\nCommon investigations\nSite down: systemctl status nginx; tail /var/log/nginx/error.log\nDisk full: df -h; du -sh /var/log/* | sort -rh | head -20\nService crash loop: journalctl -u <service> -n 50 --no-pager\nBad deploy: check /var/www/ ownership and check the deploy log.\n\nIf you cannot resolve in 30 minutes, escalate to Priya. Do not sit on a critical incident.\n\nAfter resolution, document root cause in the ticket. If recurrence risk exists, set up monitoring.\n\nIncidents are tracked in the ticket system. If you see an incident alert, check the mail panel for details and escalation status."
+}