- Move diamond left to align bottom point with center column divider
- Keep all border widths uniform across tiers (remove T4 bold borders)
- Remove corner accents entirely (T4 differentiated by glow + prismatic)
- Fix T4 header z-index: don't override position on absolutely-positioned
topright stat elements (stealing, running, bunting, hit & run)
- Add ?tier= query param for dev preview of tier styling on base cards
- Add run-local.sh for local API testing against dev database
- Add .env.local and .run-local.pid to .gitignore
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>