- Created a new script `migrate-to-sqlite.js` to migrate data from JSON files into a SQLite database.
- Implemented functions to read JSON files safely and handle errors.
- Established database schema with tables for armour, weapons, bestiary, and rules.
- Added logic to insert data from JSON files into the corresponding database tables.
- Included backup functionality for the existing database before migration.
- Logged import totals and sample data from each table for verification.
- Added a new script `check-shop-stats.js` to fetch and log item statistics from the database.
