- Added `playerGoesFirst` state to `CombatEngine` to alternate turn order each round.
- Updated `beginTurn` and `beginCommit` to handle AI deployment based on the current initiative (opponent deploys first if they have initiative, otherwise after the player).
- Modified `_buildPendingAttacks` to respect the alternating attack order.
- Added `animateHPLoss` to `CardObject.js` for a visual HP reduction animation similar to the Berserk gain effect.
- Enhanced `_animateAttack` in `BattleScene.js`:
- Integrated sprite animations for attacks (gun turret) and explosions using new spritesheets.
- Synchronized HP loss and Berserk gain animations with the attack sprite completion.
- Added an "Attacks First" indicator icon next to the commander of the side with initiative.
- Updated `BootScene.js` to load the new `attacksFirst` UI image and `attacks` spritesheet.
