feat(audio): so hit.wav quan l'enemic passa a ferit

source/core/defaults/audio.hpp

@@ -38,6 +38,7 @@ namespace Defaults::Sound {
     constexpr const char* EXPLOSION = "effects/explosion.wav";                   // Explosión
     constexpr const char* EXPLOSION2 = "effects/explosion2.wav";                 // Explosión alternativa
     constexpr const char* FRIENDLY_FIRE_HIT = "effects/friendly_fire.wav";       // Friendly fire hit
+    constexpr const char* HIT = "effects/hit.wav";                               // Enemic ferit (primer impacte → HURT)
     constexpr const char* INIT_HUD = "effects/init_hud.wav";                     // Para la animación del HUD
     constexpr const char* LASER = "effects/laser_shoot.wav";                     // Disparo
     constexpr const char* LOGO = "effects/logo.wav";                             // Logo

source/game/entities/enemy.cpp

@@ -8,6 +8,7 @@
 #include <cstdlib>
 #include <iostream>
 
+#include "core/audio/audio.hpp"
 #include "core/defaults.hpp"
 #include "core/entities/entity.hpp"
 #include "core/graphics/shape_loader.hpp"
@@ -276,6 +277,7 @@ void Enemy::destruir() {
 void Enemy::herir(uint8_t shooter_id) {
     wounded_timer_ = Defaults::Enemies::Wounded::DURATION;
     last_hit_by_ = shooter_id;
+    Audio::get()->playSound(Defaults::Sound::HIT, Audio::Group::GAME);
 }
 
 void Enemy::applyImpulse(const Vec2& impulse) {