death sounds, build sounds, better audio management

Assets/_Project/Scripts/Combat/EnemyDeathSound.cs

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+// Assets/_Project/Scripts/Combat/EnemyDeathSound.cs
+using TD.Audio;
+using TD.Gameplay;
+using UnityEngine;
+
+namespace TD.Combat
+{
+    /// <summary>
+    /// Local-only audio for enemy death. Subscribes to <see cref="EnemyHealth.OnDiedClient"/>
+    /// and plays a randomly chosen clip from <see cref="deathClips"/>.
+    /// Attach to any enemy prefab and assign its clips in the Inspector.
+    /// </summary>
+    [RequireComponent(typeof(EnemyHealth))]
+    public class EnemyDeathSound : MonoBehaviour
+    {
+        [SerializeField] private SoundConfig[] deathSounds;
+
+        private EnemyHealth enemyHealth;
+
+        private void Awake()
+        {
+            enemyHealth = GetComponent<EnemyHealth>();
+        }
+
+        private void OnEnable()
+        {
+            if (enemyHealth != null) enemyHealth.OnDiedClient += HandleDied;
+        }
+
+        private void OnDisable()
+        {
+            if (enemyHealth != null) enemyHealth.OnDiedClient -= HandleDied;
+        }
+
+        private void HandleDied()
+        {
+            if (deathSounds == null || deathSounds.Length == 0) return;
+            var sound = deathSounds[Random.Range(0, deathSounds.Length)];
+            AudioManager.Instance?.Play(sound.clip, AudioCategory.EnemyHitDeath, sound.RandomPitch(), sound.volume);
+        }
+    }
+}