ae273d5b92
Add ssl_mode configuration option to allow users to customize SSL/TLS policy for database connections instead of hardcoding sslmode=disable for PostgreSQL and having no TLS support for MySQL. Changes: - database.Config, DatabaseConfig: add SSLMode field - PostgreSQL DSN: replace hardcoded sslmode=disable with configurable value - MySQL DSN: append &tls=<SSLMode> parameter when SSLMode is set - Full config pipeline: INI/env -> DatabaseConfig -> Config -> DSN -> subprocess - New env var BH_DB_SSL_MODE and ini key [database] ssl_mode - Updated config example and documentation