ShoppingRoute 0.2.0-beta.12

Public beta 0.2.0-beta.12

• Added an official stable-release deployment path while keeping public-beta packaging separate.
• Added the shared ioBroker ESLint configuration and resolved type-safety/lint findings without functional changes.
• Updated the resolved @iobroker/testing version to 5.3.0 and revalidated the complete test suite.