POINT3 CLEAN TIMER + REPLAY FIX

What was fixed:
1) Removed old V6/V7/V8 replay conflict files.
2) Added one single replay engine: assets/js/replay_clean_pro.js + assets/css/replay_clean_pro.css.
3) Replay now uses match_state replay_active/replay_ends_ms and auto clears.
4) clear_replay.php now clears replay_active correctly.
5) Timer start now uses the exact value typed in Director and stores PHP server time, avoiding MySQL timezone mismatch.

Install:
- Replace your project files with this ZIP.
- Open Director and hard refresh Ctrl+F5.
- Open OBS Browser Source and Refresh cache of current page.
- Set timer minutes, click START TIMER.
- Click SAVE MOMENT / INSTANT REPLAY to test replay bar and scoreboard hide.
