Replace inconsistent `primary` class with `app-action-success` on all
standalone save buttons so they match the green titlebar convention.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add icanhazstring/composer-unused as dev dependency for dependency hygiene checks
- Add German documentation (docs/) covering architecture, conventions, workflows, and developer checklists
- Add API layer (ApiAuth, ApiBootstrap, ApiResponse), audit, scheduler, custom fields, and SSO services
- Add Microsoft OIDC SSO, API token management, and user lifecycle features
- Add swagger-ui vendor integration and OpenAPI spec
- Add production Docker setup and bin/ scripts
- Update composer dependencies, config, templates, and frontend assets throughout
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>