patch: Patch/misc (#10)

* yugioh adjustments

* test coverage

tests/game_module_tests.cpp

@@ -0,0 +1,51 @@
+#include <doctest/doctest.h>
+
+#include "ccm/games/magic/MagicGameModule.hpp"
+#include "ccm/games/pokemon/PokemonGameModule.hpp"
+#include "ccm/games/yugioh/YuGiOhGameModule.hpp"
+#include "ccm/ports/IHttpClient.hpp"
+
+using namespace ccm;
+
+namespace {
+
+class NoopHttpClient final : public IHttpClient {
+public:
+    Result<std::string> get(std::string_view) override {
+        return Result<std::string>::ok("{}");
+    }
+};
+
+}  // namespace
+
+TEST_SUITE("game modules expose stable identity and wiring") {
+    TEST_CASE("Magic module reports canonical metadata") {
+        NoopHttpClient http;
+        MagicGameModule module(http);
+
+        CHECK(module.id() == Game::Magic);
+        CHECK(module.dirName() == "magic");
+        CHECK(module.displayName() == "Magic");
+        CHECK(module.cardPreviewSource() != nullptr);
+    }
+
+    TEST_CASE("Pokemon module reports canonical metadata") {
+        NoopHttpClient http;
+        PokemonGameModule module(http);
+
+        CHECK(module.id() == Game::Pokemon);
+        CHECK(module.dirName() == "pokemon");
+        CHECK(module.displayName() == "Pokemon");
+        CHECK(module.cardPreviewSource() != nullptr);
+    }
+
+    TEST_CASE("YuGiOh module reports canonical metadata") {
+        NoopHttpClient http;
+        YuGiOhGameModule module(http);
+
+        CHECK(module.id() == Game::YuGiOh);
+        CHECK(module.dirName() == "yugioh");
+        CHECK(module.displayName() == "Yu-Gi-Oh!");
+        CHECK(module.cardPreviewSource() != nullptr);
+    }
+}