chore: ignore .claude and .codex directories (#188)

* chore: ignore .claude and .codex directories

* chore: remove redundant .claude ignore pattern

Author: marcellodebernardi

.gitignore

@@ -201,6 +201,7 @@ examples/datasets/**/_SUCCESS
 experiments/
 notebooks/
 
-**/.claude/settings.local.json
+.claude/
+.codex/
 config.yaml
 Makefile.local