CRUD controllers for Article, ArticleType, AttributeDefinition,
ArticleTypeAttribute, AIPipelineJob, Order, Customer, Invoice, User
and LogEntry. SecurityController handles login/logout; TotpSetupController
manages 2FA enrollment. API controllers for pipeline and orders.
Admin dashboard template and Twig base layout included.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>