feat(seo): traditional-search baseline (titles, preset 3.6, legal-link override)

[rubenvdlinde]

Summary

Companion to the AI-crawler baseline in #55. Targets traditional search engines (Google, Bing, DuckDuckGo) and the AI surfaces those engines feed (Copilot, ChatGPT Search, Perplexity).

Changes

Title dedup (8 pages)

Docusaurus auto-appends `| {Site}` to every page title. Prior frontmatter `title: Apps, Conduction` produced `Apps, Conduction | Conduction` in browser title, `og:title`, and SERP. Cleaned up:

Page	before	after
/about	About, Conduction → `About	Conduction`
/apps	Apps, Conduction → `Apps	Conduction`
/demo	Local demo, Conduction → `Local demo	Conduction`
/partners	Partners, Conduction → `Partners	Conduction`
/sidecars	Sidecars, Conduction → `Sidecars	Conduction`
/solutions	Solutions, Conduction → `Solutions	Conduction`
/support	Support, Conduction → `Support	Conduction`
/	Conduction, Public Tech for Nextcloud → `Public Tech for Nextcloud	Conduction`

`/apps/` pages left alone: "OpenRegister, Conduction" reads as branding, not a typo.

Homepage meta description

180 chars → 157 chars. Google truncates around 155-160. New copy:
"Open-source apps that plug into the Nextcloud workspace. Install yourself, get managed support, or bring a partner. EUPL-1.2, ISO 27001, Amsterdam."

Preset 3.6.0 + lockfile

Bump `@conduction/docusaurus-preset` to `^3.6.0` (preset companion PR shipped sitemap lastmod, drops priority/changefreq, adds searchConsoleVerification opt, and absolute www.conduction.nl defaults for footer legal links). Lockfile regenerated with `--min-release-age=0` per .npmrc cooldown override.

legalLinks override

conduction-website hosts /privacy, /terms, /iso itself, so we override the preset's new absolute defaults back to relative routes. Per-app subdomain sites inherit the absolute defaults (they don't have those pages) so the ~645 sitewide broken internal links the SEO audit found get fixed automatically on each site's next deploy.

searchConsoleVerification scaffold

Commented-out placeholder in docusaurus.config.js. Once ops claims the property in Google Search Console / Bing Webmaster Tools, the tokens go here and the preset emits a meta tag per token.

Validation

Deploy will run the postbuild validator (15 checks). The new SEO check (`sitemap.xml emits `) requires preset 3.6.0 — this PR's lockfile pulls it in.

Test plan

• Build succeeds
• Sitemap.xml has `` on every URL
• Browser title on /apps reads `Apps | Conduction`
• Homepage meta description renders the new 157-char version
• Footer Privacy / Terms / ISO still link to /privacy /terms /iso (not absolute www.conduction.nl URLs)