Replaces the bio-first README with a single-page overview covering
every system in the homelab (secrets/PKI, SSO, firewall, observability,
security monitoring, orchestration, notifications, registry/build,
Dashy SOC board, cron scheduler, content pipeline, IaC, disaster
recovery) plus a sanitized architecture diagram, linking out to a
full docs/ write-up for each. Bio/social links moved to the bottom.
Body text was describing a setup that no longer exists (GitLab
pipelines, a private registry) - replaced with what's actually running
(Gitea, Caddy/Authentik, Ansible/Kestra/n8n) and pointed the
"what you'll find" section at the new per-repo folder structure.
Fixed the LinkedIn link (was missing its scheme), added
Instagram/TikTok/YouTube, dropped the Bookstack wiki link.