38e4c0341e
All per-frame animation tick systems now write MessageWriter<RequestRedraw> each frame they have active work, allowing WinitSettings focused_mode to switch from Continuous to reactive_low_power(100 ms) on Android. Systems updated: - advance_card_animations (CardAnimationPlugin) - advance_card_anims (AnimationPlugin — deal/win cascade) - tick_shake_anim, tick_settle_anim, tick_foundation_flourish (FeedbackAnimPlugin) - drive_toast_display (AnimationPlugin — toast countdown) - drive_auto_complete (AutoCompletePlugin — step interval keepalive) The 100 ms low-power ceiling means the game timer still ticks ~10×/s with no input; animations self-sustain via the redraw chain at full frame rate while active; and the GPU is completely idle between frames when the board is static. Each plugin registers add_message::<RequestRedraw>() so the message type is available under MinimalPlugins in unit tests. Closes #78, #79 Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>