feat(website): link Brian's X and LinkedIn profiles from the Person node

[blove]

Follow-up to #828. sameAs is how a Person node resolves to a real-world identity, and answer engines rely on it for entity disambiguation — which is most of why /about carries a Person node. It listed only GitHub, so the two strongest disambiguating signals were absent.

What changed

Adds the profiles Brian already links publicly from brianflove.com, verified against that page's raw HTML rather than a fetched summary — an earlier summarization pass in this work invented a brianlove.dev domain that appears nowhere in the real markup, so the URLs were re-checked directly.

"sameAs": [
  "https://github.com/blove",
  "https://x.com/blovedev",
  "https://www.linkedin.com/in/blove"
]

LinkedIn answers 999 to automated requests; that's its anti-bot response, not a dead link. X and GitHub both return 200.

The invariant is preserved

The existing code comment is explicit that sameAs is an identity claim and a guessed profile is a false one. That still holds: each handle is its own opt-in field on the author record, so one is never derived from another. An author naming only a GitHub handle does not acquire an invented X URL — there's a test for precisely that:

it('omits a profile the author record does not name', () => {
  const person = /* author: { name: 'Anon', github: 'anon' } */;
  expect(person['sameAs']).toEqual(['https://github.com/anon']);
});

personProfiles() emits a stable order so the JSON-LD doesn't churn between builds.

twitter was already declared on the Author interface and read by nothing; populating it now feeds only sameAs.

Verification

• npx vitest run --config vite.config.mts from apps/website: 314 passed, 5 failed — the same pre-existing failures in thanks/page.spec.tsx, PostCard.spec.tsx, Differentiator.spec.tsx, untouched here (313 before; 1 added test accounts for the delta)
• nx lint website: 0 errors, 29 warnings (unchanged)
• nx build website --configuration=production: succeeds, and the built /about emits all three URLs in order

🤖 Generated with Claude Code

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