Millisecond stopwatch & timer

[Key Features]
- Dual features: Stopwatch + Timer
- Millisecond visualization (00:00.00 format)
- Smart timer presets (1min/5min/10min quick-set)
- Lap/split tracking with comparative analysis
- Dark mode & screen-always-on option
- Vibration/sound alerts

[Usecase]
- Sports training & lap timing
- Scientific experiments & lab use
- Cooking/baking precision
- Productivity time blocking