Runtime Trail: Robot Day Loop v0.1 is a pressure-governed robot-life sandbox where a stylized helper robot works in a warehouse, tends a garden, cares for a dog, practices a domain, learns movement through beat-trace repetition, and recharges through a daily receipt loop. The core proof is not command execution. The core proof is visible correction under pressure: the robot practices, misses, adjusts, improves, and records what changed. Built as a self-contained HTML artifact for Hugging Face Spaces.