chore(docs): bump preset to ^3.6.0 + sync lockfile (#242)

Preset 3.6.0 ships the traditional-SEO baseline (sitemap lastmod,
drops priority/changefreq per Google 2026 guidance, fixes the legal-
link 404s on subdomain footers, adds searchConsoleVerification opt).

The lockfile bump uses --min-release-age=0 per .npmrc cooldown
override (required for fresh @conduction/* releases under the
24h supply-chain cooldown).

Author: rubenvdlinde

docs/package-lock.json

@@ -17,7 +17,7 @@
     "ci": "npm ci --legacy-peer-deps && npm run build"
   },
   "dependencies": {
-    "@conduction/docusaurus-preset": "^3.5.0",
+    "@conduction/docusaurus-preset": "^3.6.0",
     "@docusaurus/core": "^3.7.0",
     "@docusaurus/preset-classic": "^3.7.0",
     "@docusaurus/theme-mermaid": "^3.7.0",