chore: drop committed Python bytecode and ignore it

The lint script's __pycache__/*.pyc was committed by accident: it is
generated output and an unreviewable binary (K22-REPO-05).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitignore

@@ -19,3 +19,5 @@ dependency-reduced-pom.xml
 /.env.local
 /.cache/
 .claude/settings.local.json
+__pycache__/
+*.py[cod]