About Essay Key Concept Links
Date: 2026-03-25 Type: User-visible site fix
What changed
The founding essay sidebar on /about no longer uses hardcoded concept URLs for the "Key Concepts" list. The page now builds those links from the KB concept entries, so each item resolves to the route the site actually serves.
Why
The sidebar was pointing at clean frontmatter-style slugs such as /concepts/initiation, while the current concept pages are generated from filename-based slugs such as /concepts/CON-0001_initiation. That mismatch left the essay's key concept links broken.
Files
site/app/about/page.tsxsite/app/about/EssayNav.tsx
User impact
Readers can now move from the founding essay into the linked concept pages without hitting broken routes.
Follow-up
The wider site still has a split between canonical frontmatter slugs and filename-derived concept routes. This fix aligns the essay page with the current router; a broader slug normalization pass remains future work.