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

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);
 }