Script Fixes, Balance & Optimization

Fixed Bear Novak’s recruitment script. If his guard is killed by zombies, the sequence will now continue, allowing Bear to be freed. You must still either ask Snitch for permission or eliminate all the bikers. - Rebalanced dismantling outputs and item weights for greater consistency, closing a few known trader loopholes. - Melee Overwatch no longer automatically targets the head, preventing the “mowing line” tactic against zombies. We plan to make melee increasingly deadly during stealth attacks. - Further optimized GPU usage by removing start-screen shadows that generated unnecessary load. - Removed the Early Access notice from the splash screen. - Applied a couple of fixes sent in by the players to the Russian localization