feat(input): binding START per jugador (teclat 1/2 fix, mando remapejable; pausa només per F11)

source/core/input/define_buttons.cpp

@@ -62,7 +62,7 @@ void DefineButtons::disable() {
 }
 
 void DefineButtons::resetSequence() {
-    // Ordre: ATTACK, JUMP, SERVICE — replica l'estructura de
+    // Ordre: ATTACK, JUMP, START, SERVICE — replica l'estructura de
     // `clearButtons()` de coffee_crisis_arcade_edition (seqüència ordenada
     // d'accions amb la SERVICE al final) adaptada al joc actual. La label
     // de SERVICE va a una clau pròpia (`menu.items.service`) per no
@@ -70,6 +70,7 @@ void DefineButtons::resetSequence() {
     sequence_.clear();
     sequence_.push_back({"menu.items.attack", GamepadBindings::Action::ATTACK, static_cast<int>(SDL_GAMEPAD_BUTTON_INVALID)});
     sequence_.push_back({"menu.items.jump", GamepadBindings::Action::JUMP, static_cast<int>(SDL_GAMEPAD_BUTTON_INVALID)});
+    sequence_.push_back({"menu.items.start", GamepadBindings::Action::START, static_cast<int>(SDL_GAMEPAD_BUTTON_INVALID)});
     sequence_.push_back({"menu.items.service", GamepadBindings::Action::SERVICE, static_cast<int>(SDL_GAMEPAD_BUTTON_INVALID)});
     index_ = 0;
 }

source/core/input/gamepad_bindings.cpp

@@ -24,6 +24,7 @@ namespace {
         ActionPair{GamepadBindings::Action::JUMP, std::string_view{"jump"}},
         ActionPair{GamepadBindings::Action::ATTACK, std::string_view{"attack"}},
         ActionPair{GamepadBindings::Action::SERVICE, std::string_view{"service"}},
+        ActionPair{GamepadBindings::Action::START, std::string_view{"start"}},
     };
 
     using ButtonPair = std::pair<int, std::string_view>;
@@ -98,6 +99,8 @@ auto GamepadBindings::defaultButton(Action action) -> int {
             return static_cast<int>(SDL_GAMEPAD_BUTTON_WEST);
         case Action::SERVICE:
             return static_cast<int>(SDL_GAMEPAD_BUTTON_BACK);
+        case Action::START:
+            return static_cast<int>(SDL_GAMEPAD_BUTTON_START);
     }
     return static_cast<int>(SDL_GAMEPAD_BUTTON_INVALID);
 }

source/core/input/gamepad_bindings.hpp

@@ -25,6 +25,7 @@ class GamepadBindings {
         JUMP,
         ATTACK,
         SERVICE,
+        START,
     };
 
     // Triggers L2/R2 representats com a "botons virtuals" — replica la