```

feat(gameplay): 更新法师主角预制体和法师生怪功能

- 添加了召唤师主角预制体文件
- 更新法师生怪预制体，替换为新的火球弹道效果
- 修复投射物斜向发射问题，统一使用Quaternion.identity旋转

fix(projectile): 修复远程投射物旋转和目标锁定问题

- 修正Projectile组件，让投射物保持水平飞行并始终朝向目标
- 修改UnitBase中投射物实例化逻辑，不再传递spawn point的旋转
- 解决法师/弓箭手attackPos骨骼动画影响导致火球和箭矢斜向发射的问题

refactor(texture): 优化火焰球纹理导入设置

- 禁用mipmap以提升显示效果
- 启用alpha透明度支持
- 将纹理类型改为Sprite模式
- 启用wrap模式改善渲染表现

docs(update): 记录远程弹道视觉方案调整和投射物修复说明
```

Assets/Script/UnitBase.cs

@@ -944,7 +944,7 @@ public class UnitBase : MonoBehaviour
         GameObject projectileObject = Instantiate(
             projectilePrefab,
             projectileSpawnPoint.position,
-            projectileSpawnPoint.rotation);
+            Quaternion.identity);
         Projectile projectile = projectileObject.GetComponent<Projectile>();
         if (projectile != null)
         {
@@ -967,7 +967,7 @@ public class UnitBase : MonoBehaviour
         GameObject projectileObject = Instantiate(
             projectilePrefab,
             projectileSpawnPoint.position,
-            projectileSpawnPoint.rotation);
+            Quaternion.identity);
         Projectile projectile = projectileObject.GetComponent<Projectile>();
         if (projectile != null)
         {