# Forge Reactor · BUILD 0004

## Polish build
- UI click sounds generated with Web Audio.
- Heat, coolant, waste and EMP have distinct feedback.
- Critical temperature warning alarm.
- Reactor failure explosion, particles, flash and screen shake.
- Reactor colour and glow respond more strongly to temperature.
- Score bump animation.
- No new gameplay mechanics.

## Test
1. Start the game once by clicking. Browsers require user interaction before audio.
2. Test both cold and hot failure states.
3. Confirm DK/GB and highscore still persist.
4. Test localhost cache reset and production service worker separately.
