Release v4.1.0

Added

• Upgraded dependency to calliostro/php-discogs-api v4.1 with built-in retry resilience on Discogs rate limits (429) and server overload (503).
• Added auto_retry (default true) and max_retries (default 3) configuration options in calliostro_discogs.
• Compatibility testing and CI matrix coverage for PHP 8.1–8.6 and Symfony 6.4 LTS, 7.x, 8.0, 8.1, and 8.2.
• Created root phpstan.neon.dist (Level 8) and migrated .php-cs-fixer.php to .php-cs-fixer.dist.php.
• Added unit tests for new retry configuration and extension options maintaining 100% code coverage.

Changed

• Updated GitHub Actions runners to ubuntu-24.04 and modernized action versions to Node 24 compatible runners.
• Overhauled README and documentation tone, adopting native GitHub Markdown alerts, backtick method formatting, and sister bundle links.