Add codex and claude files to .gitignore

Author: dkropachev

.gitignore

@@ -64,3 +64,19 @@ docs/core_graph.rst
 docs/geo_types.rst
 docs/graph.rst
 docs/graph_fluent.rst
+
+# Codex - AI assistant metadata
+.codex/
+.codex-cache/
+.codex-config.json
+.codex-settings.json
+codex.log
+AGENTS.md
+
+# Claude - AI assistant metadata
+.anthropic/
+.claude/
+claude.log
+claude_history.json
+claude_config.json
+CLAUDE.md