Strengthen person entity signals and fix canonical URL redirects

[dinooo13]

Why

Search Console (domain property) shows the site is barely indexed, and the cause is on our side:

• The sitemap, every canonical tag and every internal link used slash-less URLs (/labs), but the host serves directory indexes and 301-redirects them to /labs/. Google indexed the slash form of three pages, each declaring a canonical that redirects back, and had never crawled six of the nine content pages.
• The homepage was last crawled on 20 August, so Google still describes the eventim role.
• The old Hugo category and tag pages still collect impressions.
• The sitemap's discovered image URL was double-escaped and returned 404.

What changed

Canonical URLs use the trailing-slash form everywhere. site.trailingSlash is on, app.vue normalises the canonical, and the path helpers, nav links, homepage buttons, detail-page back links, 404/410 pages, breadcrumbs, detail-page canonicals, llms.txt, llms-full.txt and rss.xml all agree. Nothing the site advertises points at a redirect any more. RSS item GUIDs change with the URLs, so feed readers may show existing items once as new.

Person schema carries disambiguation signals. The shared #identity node now has givenName/familyName, alternateName (GitHub handle), homeLocation Bremen with postal address, nationality, worksFor.url, knowsAbout (four topics linked to Wikipedia entities), sameAs extended with the Rheinwerk speaker entry, the Rheinwerk course page and the agentic.hamburg speaker spotlight, plus subjectOf for that article and email. The hero shows "Bremen, Germany" under the role line, driven by a new optional hero.location content field.

htaccess. 410 for the whole legacy Hugo URL space (/p/, /page/, /categories/, /archives/, /search/, /about/, plus the existing /tags/, /en/, /legal), verified against the old Hugo config in git history. HTML, XML and TXT files get Cache-Control: no-cache so visitors and feed readers revalidate instead of holding the host's one-year cached copy; hashed assets keep the long cache.

Sitemap image. Image discovery is off and the portrait is declared explicitly for / with the same URL the Person schema uses.

Verification

• pnpm lint, pnpm typecheck pass; pnpm generate completes with the link checker at 0 errors / 0 warnings.
• Generated output checked: canonicals, og:url, sitemap entries (per-page lastmod preserved, error routes excluded), breadcrumbs, ItemList and Event URLs, llms.txt and rss.xml all use the slash form; no slash-less internal href remains in any page.
• Served the build and drove it in a browser: navigation stays client-side, header active state and aria-current are right on each route, canonicals update on navigation.

After deploy

• Check the homepage response headers: the cache-control change only takes effect on the Apache host. If the host injects its own header at the nginx layer both will appear and browsers honour no-cache.
• In Search Console, request indexing for /, /labs/ and /speaking/, and resubmit the sitemap.

🤖 Generated with Claude Code