chore: remove accidentally committed playground.py and gitignore it

FrancescoSaverioZuppichini · claude · FrancescoSaverioZuppichini · commit dc1005d17b85 · 2026-04-21T14:21:18.000+02:00
Co-Authored-By: Claude Opus 4.7 (1M context) &lt;noreply@anthropic.com&gt;
diff --git a/.gitignore b/.gitignore
@@ -45,3 +45,4 @@ htmlcov/
 
 # Misc
 .bfg-report/
+playground.py
