refactor: renomeia VideoStudy.Linux -> VideoStudy.App (cross-platform)

- OutputType WinExe -> Exe (funciona em Windows, Linux e macOS)
- Namespace VideoStudy.Linux -> VideoStudy.App
- Remove IPdfSaver (nunca injetado, PDF salvo pelo PersistenceService)
- Remove Platforms AnyCPU;x64 (desnecessário para Photino cross-platform)
- Simplifica Program.cs removendo código morto

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

VideoStudy.App/Program.cs

@@ -0,0 +1,33 @@
+using Microsoft.Extensions.DependencyInjection;
+using Photino.Blazor;
+using VideoStudy.UI;
+
+namespace VideoStudy.App;
+
+class Program
+{
+    [STAThread]
+    static void Main(string[] args)
+    {
+        var builder = PhotinoBlazorAppBuilder.CreateDefault(args);
+
+        builder.Services.AddVideoStudyUI();
+
+        builder.Services.AddScoped(sp => new HttpClient
+        {
+            BaseAddress = new Uri("http://localhost:5000"),
+            Timeout = TimeSpan.FromMinutes(10)
+        });
+
+        builder.RootComponents.Add<VideoStudy.UI.App>("#app");
+
+        var app = builder.Build();
+
+        app.MainWindow
+            .SetTitle("VideoStudy")
+            .SetSize(1280, 800)
+            .Center();
+
+        app.Run();
+    }
+}

VideoStudy.App/VideoStudy.App.csproj

@@ -1,11 +1,12 @@
 <Project Sdk="Microsoft.NET.Sdk.Razor">
 
   <PropertyGroup>
-    <OutputType>WinExe</OutputType>
+    <OutputType>Exe</OutputType>
     <TargetFramework>net8.0</TargetFramework>
     <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
-    <Platforms>AnyCPU;x64</Platforms>
+    <RootNamespace>VideoStudy.App</RootNamespace>
+    <!-- Cross-platform: Windows, Linux, macOS -->
   </PropertyGroup>
 
   <ItemGroup>

VideoStudy.Linux/Program.cs

@@ -1,65 +0,0 @@
-using Microsoft.Extensions.DependencyInjection;
-using Photino.Blazor;
-using VideoStudy.UI;
-using VideoStudy.Shared;
-
-namespace VideoStudy.Linux;
-
-class Program
-{
-    [STAThread]
-    static void Main(string[] args)
-    {
-        var ComponentsApp = typeof(VideoStudy.UI.App);
-
-        var builder = PhotinoBlazorAppBuilder.CreateDefault(args);
-
-        // Registro de serviços da UI Unificada
-        builder.Services.AddVideoStudyUI();
-
-        // Configurar HttpClient para a API
-        builder.Services.AddScoped(sp => new HttpClient
-        {
-            BaseAddress = new Uri("http://localhost:5000"),
-            Timeout = TimeSpan.FromMinutes(10)
-        });
-
-        // Registrar um IPdfSaver dummy ou específico para Linux se necessário
-        // No Linux, o Photino pode usar o explorador de arquivos nativo ou salvar direto na pasta Downloads
-        builder.Services.AddSingleton<IPdfSaver, LinuxPdfSaver>();
-
-        builder.RootComponents.Add(ComponentsApp, "#app");
-
-        var app = builder.Build();
-
-        app.MainWindow
-            .SetTitle("VideoStudy - Study Smarter with AI")
-            .SetSize(1200, 800)
-            .SetIconFile("wwwroot/favicon.ico") // Se houver
-            .Center();
-
-        app.Run();
-    }
-}
-
-// Implementação básica de salvamento para Linux
-public class LinuxPdfSaver : IPdfSaver
-{
-    public async Task<string?> SavePdfAsync(byte[] pdfData, string suggestedFileName)
-    {
-        // No Linux, por simplicidade inicial, vamos salvar na pasta Downloads do usuário
-        var downloadsPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), "Downloads");
-        var filePath = Path.Combine(downloadsPath, suggestedFileName);
-
-        await File.WriteAllBytesAsync(filePath, pdfData);
-        
-        // No Linux, podemos tentar abrir o arquivo usando 'xdg-open'
-        try
-        {
-            System.Diagnostics.Process.Start("xdg-open", filePath);
-        }
-        catch { }
-
-        return filePath;
-    }
-}

VideoStudy.sln

@@ -9,7 +9,7 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VideoStudy.API", "VideoStud
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VideoStudy.UI", "VideoStudy.UI\VideoStudy.UI.csproj", "{CE82389C-E484-4EAC-8F78-0FB5C6EB63A4}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VideoStudy.Linux", "VideoStudy.Linux\VideoStudy.Linux.csproj", "{D6ABA32E-D5C0-4E94-8E1C-2E6B2C83519E}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "VideoStudy.App", "VideoStudy.App\VideoStudy.App.csproj", "{D6ABA32E-D5C0-4E94-8E1C-2E6B2C83519E}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution