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/core/rendering/shape_renderer.cpp

@@ -5,7 +5,6 @@
 
 #include <cmath>
 
-#include "core/defaults.hpp"
 #include "core/rendering/line_renderer.hpp"
 
 namespace Rendering {
@@ -48,7 +47,7 @@ static auto transformPoint(const Vec2& point, const Vec2& shape_centre, const Ve
     float centered_y = point.y - shape_centre.y;
 
     // 2. Aplicar rotación 3D (si es proporciona)
-    if ((rotation_3d != nullptr) && rotation_3d->has_rotation()) {
+    if ((rotation_3d != nullptr) && rotation_3d->hasRotation()) {
         Vec2 rotated_3d = apply3dRotation(centered_x, centered_y, *rotation_3d);
         centered_x = rotated_3d.x;
         centered_y = rotated_3d.y;
@@ -72,7 +71,7 @@ static auto transformPoint(const Vec2& point, const Vec2& shape_centre, const Ve
     return {.x = rotated_x + position.x, .y = rotated_y + position.y};
 }
 
-void render_shape(Rendering::Renderer* renderer,
+void renderShape(Rendering::Renderer* renderer,
     const std::shared_ptr<Graphics::Shape>& shape,
     const Vec2& position,
     float angle,
@@ -90,7 +89,7 @@ void render_shape(Rendering::Renderer* renderer,
 
     const Vec2& shape_centre = shape->getCenter();
 
-    for (const auto& primitive : shape->get_primitives()) {
+    for (const auto& primitive : shape->getPrimitives()) {
         if (primitive.type == Graphics::PrimitiveType::POLYLINE) {
             // POLYLINE: conectar puntos consecutivos.
             for (size_t i = 0; i < primitive.points.size() - 1; i++) {