Lint: rename públicos al inglés + refactor cognitive-complexity + unused-includes

Identifier-naming: rename de métodos públicos y cross-file al inglés
(camelBack), traducción de campos y locales en el proceso (TitleShip,
StageManager, SpawnController, ShipAnimator, helpers de PlayArea, etc.).

Refactor por cognitive-complexity (>25): GameScene::draw (59→3) con 9
helpers de estado, PhysicsWorld::resolveBodyCollisions (35→5) extrayendo
resolveBodyPair, Options::load{Window,Physics,Audio}ConfigFromYaml
(32/49/57→5/2/3) con templates readField, TitleScene::update (68→4) con
5 sub-pasos por estado + handleSkipInput/handleStartInput +
triggerExitForJoinedPlayers, DebrisManager::explode (39→3) con
extractSegments/spawnDebris/applyAngularVelocity/applyVisualRotation.

use-anyofallof: bucles → std::ranges::any_of/all_of en Input,
ShipAnimator y SpawnController.

readability-static-accessed-through-instance: Director::run y
VectorText::getTextWidth/Height invocados por clase.

readability-convert-member-functions-to-static: ResourcePack::decryptData.

unused-includes: eliminación de <utility>, <cstdint>, <vector>,
<iostream>, defaults.hpp y otros no usados directamente en headers y
unidades de traducción. Restablecido core/defaults.hpp en title_scene.cpp
(falsa "unused" del header).

Bug fix: eliminado isActive() duplicado en Bullet (redeclaración tras
rename de esta_activa→isActive que chocaba con el override de Entity).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

source/game/entities/bullet.cpp

@@ -48,7 +48,7 @@ Bullet::Bullet(Rendering::Renderer* renderer)
 
 void Bullet::init() {
     // Inicialment inactiva
-    esta_ = false;
+    is_active_ = false;
     center_ = {.x = 0.0F, .y = 0.0F};
     angle_ = 0.0F;
     grace_timer_ = 0.0F;
@@ -63,7 +63,7 @@ void Bullet::init() {
 
 void Bullet::disparar(const Vec2& position, float angle, uint8_t owner_id) {
     // Activar bullet
-    esta_ = true;
+    is_active_ = true;
 
     // Almacenar propietario (0=P1, 1=P2)
     owner_id_ = owner_id;
@@ -90,7 +90,7 @@ void Bullet::disparar(const Vec2& position, float angle, uint8_t owner_id) {
 }
 
 void Bullet::update(float delta_time) {
-    if (!esta_) {
+    if (!is_active_) {
         return;
     }
 
@@ -106,7 +106,7 @@ void Bullet::update(float delta_time) {
     float max_x;
     float min_y;
     float max_y;
-    Constants::obtenir_limits_zona_segurs(Defaults::Entities::BULLET_RADIUS,
+    Constants::getSafePlayAreaBounds(Defaults::Entities::BULLET_RADIUS,
         min_x,
         max_x,
         min_y,
@@ -125,16 +125,16 @@ void Bullet::postUpdate(float /*delta_time*/) {
 }
 
 void Bullet::desactivar() {
-    esta_ = false;
+    is_active_ = false;
     // Detener el cuerpo físico para que no acumule deriva mientras inactiva.
     body_.velocity = Vec2{};
     body_.angular_velocity = 0.0F;
 }
 
 void Bullet::draw() const {
-    if (esta_ && shape_) {
+    if (is_active_ && shape_) {
         // Les bales roten segons l'angle de trayectòria (estático tras disparo)
-        Rendering::render_shape(renderer_, shape_, center_, angle_, 1.0F, 1.0F, brightness_,
+        Rendering::renderShape(renderer_, shape_, center_, angle_, 1.0F, 1.0F, brightness_,
                                 /*rotation_3d=*/nullptr, Defaults::Palette::BULLET);
     }
 }

source/game/entities/bullet.hpp

@@ -23,18 +23,17 @@ class Bullet : public Entities::Entity {
         void draw() const override;
 
         // Override: Interfaz de Entity
-        [[nodiscard]] auto isActive() const -> bool override { return esta_; }
+        [[nodiscard]] auto isActive() const -> bool override { return is_active_; }
 
         // Override: Interfaz de colisión (gameplay-level: PLAYAREA bounds-check)
         [[nodiscard]] auto getCollisionRadius() const -> float override {
             return Defaults::Entities::BULLET_RADIUS;
         }
         [[nodiscard]] auto isCollidable() const -> bool override {
-            return esta_ && grace_timer_ <= 0.0F;
+            return is_active_ && grace_timer_ <= 0.0F;
         }
 
         // Getters (API pública sin cambios)
-        [[nodiscard]] auto esta_activa() const -> bool { return esta_; }
         [[nodiscard]] auto getOwnerId() const -> uint8_t { return owner_id_; }
         [[nodiscard]] auto getGraceTimer() const -> float { return grace_timer_; }
         void desactivar();
@@ -43,7 +42,7 @@ class Bullet : public Entities::Entity {
         // Miembros específicos de Bullet (heredados: renderer_, shape_, center_, angle_, brightness_, body_).
         // Inicializados en la declaración para que tanto el ctor por defecto como el que toma renderer
         // dejen el objeto en estado coherente (proyectil inactivo, sin owner, sin grace timer).
-        bool esta_{false};
+        bool is_active_{false};
         uint8_t owner_id_{0};   // 0=P1, 1=P2
         float grace_timer_{0.0F};  // Grace period timer (0.0 = vulnerable)
 };

source/game/entities/enemy.cpp

@@ -113,7 +113,7 @@ void Enemy::init(EnemyType type, const Vec2* ship_pos) {
     float max_x;
     float min_y;
     float max_y;
-    Constants::obtenir_limits_zona_segurs(Defaults::Entities::ENEMY_RADIUS, min_x, max_x, min_y, max_y);
+    Constants::getSafePlayAreaBounds(Defaults::Entities::ENEMY_RADIUS, min_x, max_x, min_y, max_y);
 
     if (ship_pos != nullptr) {
         bool found_safe_position = false;
@@ -229,7 +229,7 @@ void Enemy::draw() const {
         case EnemyType::QUADRAT:   color = Defaults::Palette::QUADRAT;   break;
         case EnemyType::MOLINILLO: color = Defaults::Palette::MOLINILLO; break;
     }
-    Rendering::render_shape(renderer_, shape_, center_, rotacio_, SCALE, 1.0F, brightness_,
+    Rendering::renderShape(renderer_, shape_, center_, rotacio_, SCALE, 1.0F, brightness_,
                             /*rotation_3d=*/nullptr, color);
 }
 
@@ -436,7 +436,7 @@ auto Enemy::attemptSafeSpawn(const Vec2& ship_pos, float& out_x, float& out_y) -
     float max_x;
     float min_y;
     float max_y;
-    Constants::obtenir_limits_zona_segurs(Defaults::Entities::ENEMY_RADIUS, min_x, max_x, min_y, max_y);
+    Constants::getSafePlayAreaBounds(Defaults::Entities::ENEMY_RADIUS, min_x, max_x, min_y, max_y);
 
     const int RANGE_X = static_cast<int>(max_x - min_x);
     const int RANGE_Y = static_cast<int>(max_y - min_y);

source/game/entities/ship.cpp

@@ -46,7 +46,7 @@ void Ship::init(const Vec2* spawn_point, bool activar_invulnerabilitat) {
     } else {
         float centre_x;
         float centre_y;
-        Constants::obtenir_centre_zona(centre_x, centre_y);
+        Constants::getPlayAreaCenter(centre_x, centre_y);
         center_ = {.x = centre_x, .y = centre_y};
     }
 
@@ -158,6 +158,6 @@ void Ship::draw() const {
     const float VISUAL_PUSH = SPEED / 33.33F;
     const float SCALE = 1.0F + (VISUAL_PUSH / 12.0F);
 
-    Rendering::render_shape(renderer_, shape_, center_, angle_, SCALE, 1.0F, brightness_,
+    Rendering::renderShape(renderer_, shape_, center_, angle_, SCALE, 1.0F, brightness_,
                             /*rotation_3d=*/nullptr, Defaults::Palette::SHIP);
 }