f4da9564d4
- AnimationBase ABC with render(t, led_count) and from_params() contract - SolidColorAnimation: time-independent uniform fill - ChaseAnimation: moving lit segment with forward/reverse support - PulseAnimation: sine-wave breathing effect (speed maps to period) - RainbowAnimation: HSV hue cycle across strip via colorsys.hsv_to_rgb - StrobeAnimation: on/off flashing at 1-20 Hz with configurable duty cycle - ColorWipeAnimation: progressive fill from start or end - FireAnimation: Fire2012 algorithm with cooling/sparking/heat-to-color mapping - ANIMATION_REGISTRY + create_animation() factory function - All 24 tests passing