chore: add auto-claude entries to .gitignore

Author: Stephan Wald

.gitignore

@@ -19,3 +19,14 @@ npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
 build.log
+
+# Auto Claude data directory
+.auto-claude/
+
+# Auto Claude generated files
+.auto-claude-security.json
+.auto-claude-status
+.claude_settings.json
+.worktrees/
+.security-key
+logs/security/