ponytail-activate.js and ponytail-runtime.js hardcoded ~/.claude for the flag file and settings lookup, ignoring CLAUDE_CONFIG_DIR. Add a shared getClaudeDir() to ponytail-config.js and use it in both. Regression test added to hooks.test.js. Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>