march-madness (already live in ledmatrix-plugins) loads team logos from
this shared assets/sports/ncaa_logos/<ABBR>.png cache at runtime
(manager.py:233) -- these 4 were missing.
Split out of PR #412 (chore/dead-code-removal), which had accidentally
bundled these in alongside unrelated dead-code deletions.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KEZK1P1Q1fu5pcuVrkrCFZ
