Continuous video player for Test Runs

A new video-style player lets you review test run execution as a continuous, step-by-step visual replay instead of clicking through individual screenshots.

• Play/Pause/Replay controls: watch the entire test execution play back automatically, or pause at any point to inspect a specific moment
• Adjustable playback speed: choose from 0.5x, 1x, 2x, or 4x speed to review runs faster or slower
• Keyboard shortcuts: space to play/pause, arrow keys to navigate frames

Sprint #25