# Issue: Add video time code and total time display overlay

## Description
Display video time code and total duration on the video playback window, but ensure it doesn't cover/obscure the video content itself.

## Requirements
1. Show current time code (e.g., `00:01:23`)
2. Show total duration (e.g., `00:05:30`)
3. Display format: `current_time / total_time`
4. Position: Non-intrusive location (e.g., bottom-right corner with padding)
5. Should not overlap with YOLO detection boxes

## Example
```
[Current frame]                     [00:01:23 / 00:05:30]
```

## Implementation Notes
- Use cv2.putText() to render the time overlay
- Add padding/margin from edges to avoid covering video content
- Consider using a semi-transparent background for better visibility
- Make text color configurable or auto-contrast based on video content