Fix Symfony bundle integration

[lacatoire]

Summary

• Create the missing AcrissCodeBundle class that was declared in composer.json but never implemented, causing Symfony Flex auto-registration to crash
• Register all three services (AcrissCodeParser, AcrissTranslator, AcrissCodeDetails) in services.yaml
• Bundle uses AbstractBundle with proper getPath() for automatic translation discovery

Test plan

• Run composer phpunit to verify existing tests still pass
• Install the package in a Symfony project and confirm the bundle auto-registers
• Inject AcrissCodeDetails in a controller and verify it works