feat: 添加 ApiCacheLoaded 提示，区分热更成功与使用缓存场景

src/MaaWpfGui/Res/Localizations/en-us.xaml

@@ -1364,6 +1364,8 @@ Cache files (such as maps, operator avatars, etc.) need to be regenerated after
     <!--  !RootViewModel  -->
     <!--  Api  -->
     <system:String x:Key="ApiUpdateSuccess">Hot update data retrieval successful</system:String>
+    <system:String x:Key="ApiUpdateFailed">Hot update data retrieval failed</system:String>
+    <system:String x:Key="ApiCacheLoaded">Using local cached data</system:String>
     <system:String x:Key="GameResourceUpdating">Game resources are being updated.</system:String>
     <system:String x:Key="GameResourceUpdatingMirrorChyan">Updating resource {0} from ｢{key=MirrorChyan}｣...</system:String>
     <system:String x:Key="GameResourceUpdatePreparing">Indexing in progress</system:String>

src/MaaWpfGui/Res/Localizations/ja-jp.xaml

@@ -1365,6 +1365,8 @@ DEBUGディレクトリに保存される画像には数量制限があり、超
     <!--  !RootViewModel  -->
     <!--  Api  -->
     <system:String x:Key="ApiUpdateSuccess">ホットアップデートデータの取得に成功しました</system:String>
+    <system:String x:Key="ApiUpdateFailed">ホットアップデートデータの取得に失敗しました</system:String>
+    <system:String x:Key="ApiCacheLoaded">ローカルキャッシュデータを使用しています</system:String>
     <system:String x:Key="GameResourceUpdating">ゲームリソースが更新中です。</system:String>
     <system:String x:Key="GameResourceUpdatingMirrorChyan">「{key=MirrorChyan}」からリソース {0} を更新しています...</system:String>
     <system:String x:Key="GameResourceUpdatePreparing">索引の作成中</system:String>

src/MaaWpfGui/Res/Localizations/ko-kr.xaml

@@ -1366,6 +1366,8 @@ DEBUG 디렉토리에 저장된 이미지는 수량 제한이 있으며 초과
     <!--  !RootViewModel  -->
     <!--  Api  -->
     <system:String x:Key="ApiUpdateSuccess">핫 업데이트 데이터를 성공적으로 가져왔습니다</system:String>
+    <system:String x:Key="ApiUpdateFailed">핫 업데이트 데이터를 가져오지 못했습니다</system:String>
+    <system:String x:Key="ApiCacheLoaded">로컬 캐시 데이터를 사용하는 중</system:String>
     <system:String x:Key="GameResourceUpdating">게임 리소스가 업데이트 중입니다.</system:String>
     <system:String x:Key="GameResourceUpdatingMirrorChyan">｢{key=MirrorChyan}｣에서 {0} 리소스를 업데이트하는 중...</system:String>
     <system:String x:Key="GameResourceUpdatePreparing">색인 작성 중</system:String>

src/MaaWpfGui/Res/Localizations/zh-cn.xaml

@@ -1365,6 +1365,8 @@ DEBUG 目录下保存的图片有数量限制，超出后会自动清理旧图
     <!--  !RootViewModel  -->
     <!--  Api  -->
     <system:String x:Key="ApiUpdateSuccess">热更数据获取成功</system:String>
+    <system:String x:Key="ApiUpdateFailed">热更数据获取失败</system:String>
+    <system:String x:Key="ApiCacheLoaded">使用本地缓存数据</system:String>
     <system:String x:Key="GameResourceUpdating">游戏资源正在更新。</system:String>
     <system:String x:Key="GameResourceUpdatingMirrorChyan">正在使用 ｢{key=MirrorChyan}｣ 更新资源{0}……</system:String>
     <system:String x:Key="GameResourceUpdatePreparing">正在编制索引</system:String>

src/MaaWpfGui/Res/Localizations/zh-tw.xaml

@@ -1365,6 +1365,8 @@ DEBUG 目錄下儲存的圖片有數量限制，超出後會自動清理舊圖
     <!--  !RootViewModel  -->
     <!--  Api  -->
     <system:String x:Key="ApiUpdateSuccess">熱更新資料取得成功</system:String>
+    <system:String x:Key="ApiUpdateFailed">熱更新資料取得失敗</system:String>
+    <system:String x:Key="ApiCacheLoaded">使用本機快取資料</system:String>
     <system:String x:Key="GameResourceUpdating">遊戲資源正在更新。</system:String>
     <system:String x:Key="GameResourceUpdatingMirrorChyan">正在使用 ｢{key=MirrorChyan}｣ 更新資源 {0}……</system:String>
     <system:String x:Key="GameResourceUpdatePreparing">正在建立索引</system:String>

src/MaaWpfGui/Services/StageManager.cs

@@ -91,19 +91,28 @@ public class StageManager
             }
         }
 
-        var loaded = await LoadWebStages();
-        if (!loaded)
-        {
-            return;
-        }
+        var (loaded, cached) = await LoadWebStages();
 
         _ = Execute.OnUIThreadAsync(() => {
             var growlInfo = new GrowlInfo {
                 IsCustom = true,
-                Message = LocalizationHelper.GetString("ApiUpdateSuccess"),
                 IconKey = "HangoverGeometry",
                 IconBrushKey = "PallasBrush",
             };
+
+            if (!loaded)
+            {
+                growlInfo.Message = LocalizationHelper.GetString("ApiUpdateFailed");
+            }
+            else if (cached)
+            {
+                growlInfo.Message = LocalizationHelper.GetString("ApiCacheLoaded");
+            }
+            else
+            {
+                growlInfo.Message = LocalizationHelper.GetString("ApiUpdateSuccess");
+            }
+
             Growl.Info(growlInfo);
         });
     }
@@ -149,7 +158,7 @@ public class StageManager
     }
     */
 
-    private async Task<bool> LoadWebStages()
+    private async Task<(bool Success, bool Cached)> LoadWebStages()
     {
         var clientType = GetClientType();
 
@@ -174,14 +183,17 @@ public class StageManager
 
         if (activityJson is null || tasksJson is null)
         {
-            return false;
+            return (false, false);
         }
 
         if (clientType != ClientType.Official && globalTasksJson is null)
         {
-            return false;
+            return (false, false);
         }
 
+        // 检查是否所有资源都命中缓存
+        bool allCached = activityCached && taskCached && globalTasksCached;
+
         if (!taskCached || !globalTasksCached)
         {
             await Task.Run(() => {
@@ -193,7 +205,8 @@ public class StageManager
         {
             MergePermanentAndActivityStages(activityJson);
         }
-        return true;
+
+        return (true, allCached);
     }
 
     private void MergePermanentAndActivityStages(JObject? activity)