992b4e9e17
- Add PostgreSQL detection via psql command * Detects version from psql --version * Sets SYS_DB_TYPE="postgresql" - Add Percona Server detection as MySQL variant * Checks for 'Percona' in mysql --version output * Sets SYS_DB_TYPE="percona" * Distinguishes from standard MySQL and MariaDB Impact: Toolkit now supports three database types: - MySQL (traditional) - MariaDB (drop-in replacement) - Percona Server (high-performance variant) - PostgreSQL (RDBMS alternative) Makes toolkit compatible with broader range of server configurations.