feat: 未拥有技能卡皮肤时也播放该卡的 cut-in 演出

考试内所有皮肤表现都由 ExamCardData.ProduceCardSkinId 派生：
PrePlayCardAsync -> PlayCutInAsync(skinId) -> TryGetCutInParams
-> mov_{id}_skillcard.usm + cutInType，以及 ExamCardButtonImage
-> GetThumbnailLoopMovieName(skinId) 的手牌循环缩略图。

于是在该 getter 上，把没挂皮肤的卡按 produceCardId 补成主表里
CutInType 最高的皮肤 id，一个 hook 覆盖 cut-in 与手牌缩略图。
映射表从 ProduceCardSkinMaster 惰性构建一次。

跟随 dbgMode 生效，不额外加配置项和 GUI 开关。

已知代价：该 getter 另有 ExamDataSerializeData 与 ExamParameterModel
两个读取方，伪造的 skinId 会进考试状态序列化和 play log，
竞赛回放会随之上传。

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/GakumasLocalify/Hook.cpp

@@ -1724,6 +1724,75 @@ namespace GakumasLocal::HookMain {
         return AddPhotographyIdolSkinItems(ret, characterId ? characterId->ToString() : "", getItem, getId);
     }
 
+    // ---- 技能卡皮肤（ProduceCardSkin）：没有专属皮也播专属皮的演出 ----
+    // 考试内所有皮肤表现都由 ExamCardData.ProduceCardSkinId 派生：
+    //   PrePlayCardAsync -> PlayCutInAsync(skinId) -> TryGetCutInParams -> mov_{id}_skillcard.usm + cutInType
+    //   ExamCardButtonImage.SetCard -> GetThumbnailLoopMovieName(skinId) -> 手牌循环缩略图
+    // 所以在这个 getter 上，把「没挂皮肤」的卡补成主表里同 ProduceCardId、CutInType 最高的专属皮即可。
+    // 注意：该 getter 另有 ExamDataSerializeData / ExamParameterModel 两个读取方，
+    // 伪造的 id 会进考试状态序列化和 play log（竞赛回放会上传），纯本地表现之外的副作用仅此。
+    std::unordered_map<std::string, std::string> produceCardSkinCutInRemap{};  // produceCardId -> 专属皮 id
+    bool produceCardSkinCutInRemapBuilt = false;
+
+    void BuildProduceCardSkinCutInRemap() {
+        if (produceCardSkinCutInRemapBuilt) return;
+        static auto getMaster = Il2cppUtils::GetMethod("Assembly-CSharp.dll", "Campus.Common.Master", "MasterManager", "get_ProduceCardSkinMaster");
+        static auto masterKlass = Il2cppUtils::GetClass("Assembly-CSharp.dll", "Campus.Common.Master", "ProduceCardSkinMaster");
+        static auto getId = Il2cppUtils::GetMethod("Assembly-CSharp.dll", "Campus.Common.Proto.Client.Master", "ProduceCardSkin", "get_Id");
+        static auto getCardId = Il2cppUtils::GetMethod("Assembly-CSharp.dll", "Campus.Common.Proto.Client.Master", "ProduceCardSkin", "get_ProduceCardId");
+        static auto getCutInType = Il2cppUtils::GetMethod("Assembly-CSharp.dll", "Campus.Common.Proto.Client.Master", "ProduceCardSkin", "get_CutInType");
+        if (!getMaster || !masterKlass || !getId || !getCardId || !getCutInType) return;
+        // 取 1 参重载 GetAllWithSortByKey(sortType)，末尾补隐藏 MethodInfo*
+        static auto getAll_mtd = Il2cppUtils::il2cpp_class_get_method_from_name(masterKlass->address, "GetAllWithSortByKey", 1);
+        if (!getAll_mtd) return;
+        auto getAll = reinterpret_cast<UnityResolve::UnityType::List<void*>* (*)(void*, int, void*)>(getAll_mtd->methodPointer);
+
+        auto master = getMaster->Invoke<void*>(nullptr);
+        if (!master) return;
+        auto list = getAll(master, 0, (void*)getAll_mtd);
+        if (!list) return;
+
+        // produceCardId -> (最高 cutInType, 皮肤 id)。没有 cut-in 的皮抄过来也没演出，直接跳过
+        std::unordered_map<std::string, std::pair<int, std::string>> best{};
+        int valid = 0, withCutIn = 0;
+        for (auto item : list->ToArray()->ToVector()) {
+            if (!item) continue;  // ToVector 含 List 容量内的 null 槽位
+            auto id = getId->Invoke<Il2cppString*>(item);
+            auto cardId = getCardId->Invoke<Il2cppString*>(item);
+            if (!id || !cardId) continue;
+            ++valid;
+            // ProduceCardSkinCutInType: Unknown=0 / Small=1 / Mid=2 / Grand=3
+            const int cutIn = getCutInType->Invoke<int>(item);
+            if (cutIn <= 0) continue;
+            ++withCutIn;
+            auto& slot = best[cardId->ToString()];
+            if (cutIn > slot.first) slot = { cutIn, id->ToString() };
+        }
+        if (!valid) return;  // 主表还没加载，下次再建
+
+        for (const auto& [cardId, slot] : best) produceCardSkinCutInRemap.emplace(cardId, slot.second);
+        produceCardSkinCutInRemapBuilt = true;
+        Log::InfoFmt("ProduceCardSkin cut-in remap built: %zu cards (rows=%d, withCutIn=%d)",
+                     produceCardSkinCutInRemap.size(), valid, withCutIn);
+    }
+
+    // 卡本身没挂皮肤时，按 produceCardId 补一个带 cut-in 的皮肤 id；
+    // 已经挂了皮肤的走原样，不覆盖玩家自己的选择
+    DEFINE_HOOK(Il2cppString*, ExamCardData_get_ProduceCardSkinId, (void* self, void* mtd)) {
+        auto ret = ExamCardData_get_ProduceCardSkinId_Orig(self, mtd);
+        if (!Config::dbgMode) return ret;
+        if (ret && !ret->ToString().empty()) return ret;
+
+        static auto ExamCardData_get_Id = Il2cppUtils::GetMethod("Assembly-CSharp.dll", "Campus.InGame.Card", "ExamCardData", "get_Id");
+        if (!ExamCardData_get_Id) return ret;
+        auto cardId = ExamCardData_get_Id->Invoke<Il2cppString*>(self);
+        if (!cardId) return ret;
+
+        BuildProduceCardSkinCutInRemap();
+        auto it = produceCardSkinCutInRemap.find(cardId->ToString());
+        return it == produceCardSkinCutInRemap.end() ? ret : Il2cppString::New(it->second);
+    }
+
     void* getCompletedUniTask() {
         static auto unitask_klass = Il2cppUtils::GetClass("UniTask.dll", "Cysharp.Threading.Tasks", "UniTask");
         static auto CompletedTask_field = unitask_klass->Get<UnityResolve::Field>("CompletedTask");
@@ -2480,6 +2549,11 @@ namespace GakumasLocal::HookMain {
                      "ExchangeSpToNormal",
                      { "Campus.Common.Proto.Client.Enums.ProduceStepType" }));
 
+        ADD_HOOK(ExamCardData_get_ProduceCardSkinId,
+                 Il2cppUtils::GetMethodPointer(
+                     "Assembly-CSharp.dll", "Campus.InGame.Card", "ExamCardData",
+                     "get_ProduceCardSkinId"));
+
         /* // 此 block 为 MasterBase 相关的 hook，后来发现它们最后都会调用 MessageExtensions.MergeFrom 进行构造，遂停用。现留档以备用
         // ADD_HOOK(MasterBase_GetAll, Il2cppUtils::GetMethodPointer("quaunity-master-manager.Runtime.dll", "Qua.Master",
         //                                                          "MasterBase`2", "GetAll", {"*", "*", "*", "*", "*"}));