Anchor offset + stat-seed maintenance note

Details

Round 2 of the 5-reviewer panel returned a unanimous SHIP. Minor polish from
the accepted nice-to-haves:
- reconcile scroll-padding-top with the fixed nav height so anchored sections
  land flush below the nav
- document the seeded stat counts (the never-zero floor) for future maintenance
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HShRpQUmDUttxD5F89ziDu

Files changed (2)