feat(intro/outro): panel translúcid sota el rètol amb easing del text

source/game/scenes/room_fsm.cpp

@@ -63,6 +63,19 @@ namespace RoomFsm {
                 cfg.text_exit_curve = UiConfig::curveByName(n["exit_curve"].get_value<std::string>());
             }
         }
+        if (yaml.contains("text_panel")) {
+            const auto& n = yaml["text_panel"];
+            if (n.contains("color") && n["color"].is_sequence() && n["color"].size() == 3) {
+                const auto R = n["color"][0].get_value<std::uint32_t>() & 0xFFU;
+                const auto G = n["color"][1].get_value<std::uint32_t>() & 0xFFU;
+                const auto B = n["color"][2].get_value<std::uint32_t>() & 0xFFU;
+                cfg.text_panel_color = (R << 16) | (G << 8) | B;
+            }
+            if (n.contains("alpha")) {
+                cfg.text_panel_alpha = static_cast<std::uint8_t>(n["alpha"].get_value<std::uint32_t>() & 0xFFU);
+            }
+            cfg.text_panel_height_px = readChildInt(n, "height_px", cfg.text_panel_height_px);
+        }
 
         std::cout << "RoomFsm: timings carregats des de " << yaml_path
                   << " (intro fade " << cfg.intro_fade_in_ms