- Add check_holidays MCP tool in server.py with SQLite caching (cache-first, API-fallback)
- Add Section 6 Pre-Analysis Checklist (market status, holidays, news, analysis type) to SKILL.md
- Add holidays-data named volume to docker-compose.yml for DB persistence
- Add API_CO_ID_KEY and HOLIDAYS_DB_PATH env vars to Dockerfile and .env.example
- Remove scripts/ directory (replaced by MCP tool), slim down Dockerfile
Achmad