🔴 RED: Tests proved obstacle_guard silently ignored system permission dialogs and foreign app overlays, causing the bot to get stuck on Android modals. 🟢 GREEN: obstacle_guard now dismisses OBSTACLE_SYSTEM and OBSTACLE_FOREIGN_APP with immediate back-press, preventing the interaction chain from running against non-Instagram UI elements. 🔵 REFACTOR: Fixed broken import in resonance_evaluator (was importing humanized_scroll from utils instead of physics.humanized_input).