[CodeWithEugene]

Follow-up to the image audit.

• Descriptive file names: all 45 marketing images renamed from generic names (build.webp, win.webp) to descriptive ones (hackathon-winner-with-trophy-and-laptop.webp), one map in lib/seo/renamed-images.ts. Every reference in components, blog posts, covers and the seed is updated.
• Old URLs keep working: next.config.ts adds a permanent (308) redirect for every old path, so anything already indexed, shared, or stored in the database still resolves and passes ranking on.
• No data migration needed: the only image paths production stores are stock placeholder covers, which coverFor always replaces with the category image; the legacy list now recognises both old and new names.
• Blog cover alt text: blog cards used alt=""; they now use each post's existing coverAlt.
• Sitemap images: home (hero, journey, trust photos), How It Works (process photos), every blog post (cover) and every real hackathon (cover).

Test plan

• New tests: every renamed file exists and no old file remains, names are descriptive, every referenced marketing image exists, stock covers (old and new names) still resolve to the category cover
• pnpm test 336 passing, lint, typecheck, production build
• Dev server: 45 images across 5 pages load, no empty alt text, old path 308-redirects to the new one
• After deploy: live images, redirects, and sitemap image entries