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Any tile can now be double width: pack() in runtime_model.h places wide tiles in the left column and the manager preview follows the same rules. New cards: built-in clock (digital or analog, screen.clock), five-day weather forecast on a wide weather card fed by weather.get_forecasts, history sparkline for sensors, sunrise/sunset (sun.sun), live kitchen timer (timer.*, tap starts or pauses) and presence (person.*). The manager pre-computes time-zone and forecast extras in a new 'x' object and refuses layouts with new domains until the screen runs 0.2.14. The self-test follows the packing, checks custom card parts and wide widths, and diagnostics/send_layout.py pushes a demo layout of every card type for render checks without Home Assistant. App 0.2.12, firmware 0.2.14. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>