refactor(core/rendering): esborrar codi mort de Text (DEAD-01 + DEAD-02)

Eliminats cinc mètodes sense callers externs:

- writeShadowed / writeCentered: la funcionalitat viu a writeDX(flags,
  ...) que és l'API reutilitzable; ningú crida aquestes variants
  discretes.
- glyphWidth / getGlyphClip: getters per glif no consumits enlloc.
- codepointToUtf8: helper de serialització UTF-8 no consumit (només es
  consumeix el parser nextCodepoint, que queda).

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

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

docs/audit-core-rendering.md

@@ -94,8 +94,8 @@ Los IDs se mantienen estables una vez asignados. Cada entrada apunta al(los) fic
 
 | ID | Fichero:línea | Hallazgo | Severidad | Estado | Notas |
 |----|---------------|----------|-----------|--------|-------|
-| DEAD-01 | `text.hpp:50-51` | `writeShadowed`, `writeCentered` sin callers externos | Importante | PENDING | borrar |
-| DEAD-02 | `text.hpp:62-63,67` | `glyphWidth`, `getGlyphClip`, `codepointToUtf8` sin callers | Importante | PENDING | borrar |
+| 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 |
@@ -126,4 +126,5 @@ Los IDs se mantienen estables una vez asignados. Cada entrada apunta al(los) fic
 - `5f46fb2` — CONV-03 + DUP-04 + DUP-05 + PATCH-07: shaders MSL i helpers extrets a `sdl3gpu/msl/` i `sdl3gpu/shader_factory.hpp`
 - `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()`
-- `<pendent>` — COUP-02b (= COUP-03): `Surface` usa `Rendering::activeCanvas()` en lloc de `Screen::get()`
+- `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`

source/core/rendering/text.cpp

@@ -47,26 +47,6 @@ auto Text::nextCodepoint(const std::string& s, std::size_t& pos) -> std::uint32_
     return cp;
 }
 
-auto Text::codepointToUtf8(std::uint32_t cp) -> std::string {
-    std::string result;
-    if (cp < 0x80) {
-        result += static_cast<char>(cp);
-    } else if (cp < 0x800) {
-        result += static_cast<char>(0xC0 | (cp >> 6));
-        result += static_cast<char>(0x80 | (cp & 0x3F));
-    } else if (cp < 0x10000) {
-        result += static_cast<char>(0xE0 | (cp >> 12));
-        result += static_cast<char>(0x80 | ((cp >> 6) & 0x3F));
-        result += static_cast<char>(0x80 | (cp & 0x3F));
-    } else {
-        result += static_cast<char>(0xF0 | (cp >> 18));
-        result += static_cast<char>(0x80 | ((cp >> 12) & 0x3F));
-        result += static_cast<char>(0x80 | ((cp >> 6) & 0x3F));
-        result += static_cast<char>(0x80 | (cp & 0x3F));
-    }
-    return result;
-}
-
 // Format .fnt: claus "box_width/box_height/columns/cell_spacing/row_spacing"
 // i una línia per glif amb "codepoint_decimal amplada_visual". Els glifs
 // s'ordenen al png per ordre d'aparició al .fnt (glyph_index).
@@ -165,16 +145,6 @@ void Text::writeColored(int x, int y, const std::string& text, Uint8 color, int
     }
 }
 
-void Text::writeShadowed(int x, int y, const std::string& text, Uint8 color, Uint8 shadow_distance, int kerning, int length) {
-    writeColored(x + shadow_distance, y + shadow_distance, text, color, kerning, length);
-    write(x, y, text, kerning, length);
-}
-
-void Text::writeCentered(int x, int y, const std::string& text, int kerning, int length) {
-    x -= (Text::length(text, kerning) / 2);
-    write(x, y, text, kerning, length);
-}
-
 void Text::writeDX(Uint8 flags, int x, int y, const std::string& text, int kerning, Uint8 text_color, Uint8 shadow_distance, Uint8 shadow_color, int length) {
     const bool CENTERED = ((flags & CENTER_FLAG) == CENTER_FLAG);
     const bool SHADOWED = ((flags & SHADOW_FLAG) == SHADOW_FLAG);
@@ -265,22 +235,6 @@ auto Text::length(const std::string& text, int kerning) const -> int {
     return shift > 0 ? shift - kerning : 0;
 }
 
-auto Text::glyphWidth(std::uint32_t codepoint, int kerning) const -> int {
-    if (const Offset* off = resolveGlyph(codepoint); off != nullptr) {
-        return off->w + kerning;
-    }
-    return 0;
-}
-
-auto Text::getGlyphClip(std::uint32_t codepoint) const -> SDL_FRect {
-    const Offset* off = resolveGlyph(codepoint);
-    if (off == nullptr) { return {.x = 0.0F, .y = 0.0F, .w = 0.0F, .h = 0.0F}; }
-    return {.x = static_cast<float>(off->x),
-        .y = static_cast<float>(off->y),
-        .w = static_cast<float>(box_width_),
-        .h = static_cast<float>(box_height_)};
-}
-
 auto Text::resolveGlyph(std::uint32_t cp) const -> const Offset* {
     auto it = offset_.find(cp);
     if (it == offset_.end()) { it = offset_.find('?'); }

source/core/rendering/text.hpp

@@ -54,8 +54,6 @@ class Text {
 
     void write(int x, int y, const std::string& text, int kerning = 1, int length = -1);
     void writeColored(int x, int y, const std::string& text, Uint8 color, int kerning = 1, int length = -1);
-    void writeShadowed(int x, int y, const std::string& text, Uint8 color, Uint8 shadow_distance = 1, int kerning = 1, int length = -1);
-    void writeCentered(int x, int y, const std::string& text, int kerning = 1, int length = -1);
     void writeDX(Uint8 flags, int x, int y, const std::string& text, int kerning = 1, Uint8 text_color = 0, Uint8 shadow_distance = 1, Uint8 shadow_color = 0, int length = -1);
 
     // Dibuixa amb amplada fixa només per als dígits '0'-'9' (cadascun centrat
@@ -66,12 +64,8 @@ class Text {
     [[nodiscard]] auto length(const std::string& text, int kerning = 1) const -> int;
     [[nodiscard]] auto lengthMonoDigits(const std::string& text, int digit_cell_w, int kerning = 1) const -> int;
     [[nodiscard]] auto getCharacterSize() const -> int { return box_width_; }
-    [[nodiscard]] auto glyphWidth(std::uint32_t codepoint, int kerning = 0) const -> int;
-    [[nodiscard]] auto getGlyphClip(std::uint32_t codepoint) const -> SDL_FRect;
-    [[nodiscard]] auto getSprite() const -> Sprite* { return sprite_.get(); }
 
     static auto loadTextFile(const std::string& file_path) -> std::shared_ptr<File>;
-    static auto codepointToUtf8(std::uint32_t cp) -> std::string;
     static auto nextCodepoint(const std::string& s, std::size_t& pos) -> std::uint32_t;
 
    private: