Reuters:
- Remove homepage source (reuters) from config; keep business/markets/world
- reuters-markets: fix stale hashed CSS class (only 9/20 articles) →
  composite data-testid listSelector (MediaStoryCard/BasicCard/HeroCard/
  HubCard/AuthorCard/OurColumnists), now captures all 20
- All three: add validateArticle (og:type/JSON-LD/body), broaden
  urlPattern to site-wide date-suffix match, exclude podcasts/newsletter
- Verified: Business 20, Markets 20 (was 9), World 19 article links

nikkei-tech: bring recipe + fixtures into tree (composite listSelector,
validateArticle, 7-article/5-section regression fixtures).