refactor(core/rendering): esborrar codi mort a Sprite/Surface i inline Sprite::update (DEAD-04/-05/-07/-08/-10 + PATCH-04)

Eliminats mètodes sense callers:
- Sprite::getRect() (DEAD-04)
- Sprite::incX / incY (DEAD-05)
- AnimatedSprite::getCurrentAnimationSize() (DEAD-07)
- Surface::getSurfaceData() (DEAD-08)

Sprite::update passa a ser virtual amb cos buit inline al header, en
lloc de la definició a .cpp amb (void)delta_time; desapareix una línia
de "parxejament" sense alterar la polimorfia (Player::update, heretat
via AnimatedSprite/MovingSprite, continua fent override correctament).
Això tanca DEAD-10 i PATCH-04 alhora.

Els ctors per defecte Sprite()/MovingSprite() s'apunten com WONTFIX al
document: són necessaris per a la cadena de construcció base d'Animated
Sprite (que no delega explícitament al ctor parametritzat).

Build + smoke 5s xvfb OK (exit 124).

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

docs/audit-core-rendering.md

@@ -60,7 +60,7 @@ Los IDs se mantienen estables una vez asignados. Cada entrada apunta al(los) fic
 | PATCH-01 | `screen.cpp:71-92,210-214`, `sdl3gpu_shader.cpp:445-493` | workarounds Wayland/Vulkan | Importante | WONTFIX (de momento) | RAII para forzar orden — deferred |
 | PATCH-02 | `render_info.cpp:85-88` | guard bug-fix animation | Menor | PENDING | refactor FSM animación |
 | PATCH-03 | `notifier.cpp:78-85` | TODO implícito de cola FIFO | Menor | WONTFIX | documentar decisión |
-| PATCH-04 | `sprite.cpp:47-49` | `Sprite::update` vacío hook no invocado | Menor | PENDING | borrar (ver DEAD-10) |
+| PATCH-04 | `sprite.cpp:47-49` | `Sprite::update` vacío hook no invocado | Menor | DONE | resolt amb DEAD-10 |
 | PATCH-05 | `gif.cpp:12-15` | comentario "reemplaçar macro READ" | Menor | PENDING | limpiar comentario |
 | PATCH-06 | `gif.cpp:83-86` | guard self-reference defensivo | Menor | WONTFIX | dejar, cambiar `cerr` → logger futuro |
 | PATCH-07 | `sdl3gpu_shader.cpp:17,162` + `crtpi_pipeline.cpp:16,162` | `NOLINTBEGIN` gigantes sobre MSL | Importante | DONE | eliminats amb CONV-03 |
@@ -96,14 +96,14 @@ Los IDs se mantienen estables una vez asignados. Cada entrada apunta al(los) fic
 |----|---------------|----------|-----------|--------|-------|
 | DEAD-01 | `text.hpp:50-51` | `writeShadowed`, `writeCentered` sin callers externos | Importante | DONE | esborrats |
 | DEAD-02 | `text.hpp:62-63,67` | `glyphWidth`, `getGlyphClip`, `codepointToUtf8` sin callers | Importante | DONE | esborrats |
-| DEAD-03 | `text.hpp:64` | `getSprite()` sin callers | Menor | PENDING | borrar |
-| DEAD-04 | `sprite.hpp:33` | `getRect()` sin callers | Menor | PENDING | borrar |
-| DEAD-05 | `sprite.hpp:42-43` | `incX`, `incY` sin callers | Menor | PENDING | borrar |
-| DEAD-06 | `sprite.hpp:12`, `moving_sprite.hpp:13` | ctors default sin callers | Menor | PENDING | borrar |
-| DEAD-07 | `animated_sprite.hpp:30` | `getCurrentAnimationSize()` sin callers | Menor | PENDING | borrar |
-| DEAD-08 | `surface.hpp:61` | `getSurfaceData()` sin callers externos | Menor | PENDING | borrar o privatizar |
+| DEAD-03 | `text.hpp:64` | `getSprite()` sin callers | Menor | DONE | esborrat amb DEAD-01/02 |
+| DEAD-04 | `sprite.hpp:33` | `getRect()` sin callers | Menor | DONE | esborrat |
+| DEAD-05 | `sprite.hpp:42-43` | `incX`, `incY` sin callers | Menor | DONE | esborrats |
+| DEAD-06 | `sprite.hpp:12`, `moving_sprite.hpp:13` | ctors default sin callers | Menor | WONTFIX | usats transitivament pel ctor de `AnimatedSprite` (base-class-construction) |
+| DEAD-07 | `animated_sprite.hpp:30` | `getCurrentAnimationSize()` sin callers | Menor | DONE | esborrat |
+| DEAD-08 | `surface.hpp:61` | `getSurfaceData()` sin callers externos | Menor | DONE | esborrat |
 | DEAD-09 | `gif.hpp:45-65` | `Extension`, `ApplicationExtension`, `PlaintextExtension`, `GraphicControlExtension` no instanciados | Menor | PENDING | borrar |
-| DEAD-10 | `sprite.cpp:47-49` | `Sprite::update` hook no invocado | Menor | PENDING | borrar (cruza PATCH-04) |
+| DEAD-10 | `sprite.cpp:47-49` | `Sprite::update` hook no invocado | Menor | DONE | inlined buit al header (resol PATCH-04) |
 
 ## 7. Violaciones de convenciones del proyecto
 
@@ -127,4 +127,5 @@ Los IDs se mantienen estables una vez asignados. Cada entrada apunta al(los) fic
 - `a63deac` — DUP-03 + HC-01: `Text` amb `resolveGlyph` i constants `INK_COLOR_INDEX` / `DEFAULT_TEXT_COLOR`
 - `029907d` — COUP-02a: `Screen` desacoblat de `SDL3GPUShader` via `makeDefaultShaderBackend()`
 - `81fe826` — COUP-02b (= COUP-03): `Surface` usa `Rendering::activeCanvas()` en lloc de `Screen::get()`
-- `<pendent>` — DEAD-01 + DEAD-02: esborrats `writeShadowed`/`writeCentered`/`glyphWidth`/`getGlyphClip`/`codepointToUtf8`
+- `b51109e` — DEAD-01 + DEAD-02 + DEAD-03: esborrats mètodes mort de `Text`
+- `<pendent>` — DEAD-04/05/07/08/10 + PATCH-04: neteja mort a `Sprite`/`AnimatedSprite`/`Surface` + `Sprite::update` inline

source/core/rendering/sprite/animated_sprite.hpp

@@ -27,7 +27,6 @@ class AnimatedSprite : public MovingSprite {
     void update(float delta_time) override;
 
     auto animationIsCompleted() -> bool;
-    auto getCurrentAnimationSize() -> int { return static_cast<int>(animations_[current_animation_].frames.size()); }
 
     void setCurrentAnimation(const std::string& name = "default");
     void setCurrentAnimation(int index = 0);

source/core/rendering/sprite/sprite.cpp

@@ -43,7 +43,3 @@ void Sprite::clear() {
     pos_ = {.x = 0.0F, .y = 0.0F, .w = 0.0F, .h = 0.0F};
     clip_ = {.x = 0.0F, .y = 0.0F, .w = 0.0F, .h = 0.0F};
 }
-
-void Sprite::update(float delta_time) {
-    (void)delta_time;
-}

source/core/rendering/sprite/sprite.hpp

@@ -16,7 +16,9 @@ class Sprite {
 
     virtual ~Sprite() = default;
 
-    virtual void update(float delta_time);
+    // Hook d'actualització per frame. Base buida (no hi ha Sprite pur a
+    // actualitzar); les subclasses mòbils/animades fan override.
+    virtual void update(float /*delta_time*/) {}
     virtual void render();
     // Renderitza substituint l'índex source_color per target_color (ús típic:
     // la classe Text, que recolora glifs monocroms per paràmetre).
@@ -30,7 +32,6 @@ class Sprite {
     [[nodiscard]] auto getPosition() const -> SDL_FRect { return pos_; }
     [[nodiscard]] auto getClip() const -> SDL_FRect { return clip_; }
     [[nodiscard]] auto getSurface() const -> std::shared_ptr<Surface> { return surface_; }
-    auto getRect() -> SDL_FRect& { return pos_; }
 
     void setX(float x) { pos_.x = x; }
     void setY(float y) { pos_.y = y; }
@@ -39,8 +40,6 @@ class Sprite {
     void setPosition(float x, float y);
     void setPosition(SDL_FPoint p);
     void setPosition(SDL_FRect r) { pos_ = r; }
-    void incX(float value) { pos_.x += value; }
-    void incY(float value) { pos_.y += value; }
 
     void setClip(SDL_FRect rect) { clip_ = rect; }
     void setClip(float x, float y, float w, float h) { clip_ = SDL_FRect{.x = x, .y = y, .w = w, .h = h}; }

source/core/rendering/surface.hpp

@@ -58,7 +58,6 @@ class Surface {
     void putPixel(int x, int y, Uint8 color);
     [[nodiscard]] auto getPixel(int x, int y) const -> Uint8;
 
-    [[nodiscard]] auto getSurfaceData() const -> std::shared_ptr<SurfaceData> { return surface_data_; }
     [[nodiscard]] auto getWidth() const -> int { return surface_data_->width; }
     [[nodiscard]] auto getHeight() const -> int { return surface_data_->height; }