feat(content): reposition for security engineer, expand services to 37

Hero subtitle and blurb rewritten to lead with security operations
and homelab credentials over generic "builder" framing.

Projects: archive plAIground, service-monitor, ThoughtSpace (2025);
add open-pact and helm as featured; add risk-ops to archive (2026).
Add statusBadge + externalUrl to Project type; wire golf-book-mobile.

Services: 24 → 37 — split grouped arr/media entries, add mail relay,
gluetun, Home Assistant, Glance, Filebrowser, Prowlarr, Bazarr,
nzbget, qBittorrent, Kavita, Openshelf. Drop Calibre-Web.

Skills: add Go to Languages. Timeline: update monitoring stack.
Homelab ADRs: add Authentik over Authelia.

src/components/Skills.tsx

@@ -3,7 +3,7 @@ import Widget from "@/components/Widget";
 const skillGroups = [
   {
     label: "Languages",
-    skills: ["JavaScript", "TypeScript", "HTML", "CSS"],
+    skills: ["Go", "JavaScript", "TypeScript", "HTML", "CSS"],
   },
   {
     label: "Frontend",