Enhanced the PostgreSQL connection handling by introducing a `--connection-timeout` parameter, allowing users to specify a custom timeout in milliseconds. Updated relevant documentation in README and postgresql-setup.md to reflect this new option. Modified the PostgresqlAdapter to utilize the connection timeout setting during database connections.
Updated package.json and package-lock.json to include PostgreSQL dependencies. Enhanced README with PostgreSQL usage instructions and configuration details. Modified index.ts to handle PostgreSQL connection parameters and logging. Added PostgresqlAdapter for database interactions.
