fix: trim caused issue

Author: tangge233

src/LiteSnap.App/LanguageExtension.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics.CodeAnalysis;
 using Avalonia.Data;
 using Avalonia.Markup.Xaml;
 using LiteSnap.App.Services;
@@ -9,6 +10,7 @@ public class LanguageExtension : MarkupExtension
 {
     public string? Key { get; set; }
 
+    [UnconditionalSuppressMessage("Trimming", "IL2026", Justification = "Dynamic Binding for i18n is by-design")]
     public override object ProvideValue(IServiceProvider serviceProvider)
     {
         if (Key is null) return "";

src/LiteSnap.App/LiteSnap.App.csproj

@@ -15,6 +15,11 @@
     <AvaloniaResource Include="Locales\**" />
   </ItemGroup>
 
+  <!-- Preserve all app code from trimming: LanguageManager loads Locales via AssetLoader.Open at runtime -->
+  <ItemGroup>
+    <TrimmerRootAssembly Include="LiteSnap.App" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Avalonia" Version="12.0.5" />
     <PackageReference Include="Avalonia.Desktop" Version="12.0.5" />

src/LiteSnap.App/Services/LanguageManager.cs

@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.ComponentModel;
-using System.IO;
 using System.Text.Json;
 using System.Threading.Tasks;
 using Avalonia.Platform;
@@ -54,10 +53,13 @@ public async Task LoadAsync(string lang)
         {
             var uri = new Uri($"avares://LiteSnap.App/Locales/{lang}.json");
             using var stream = AssetLoader.Open(uri);
-            using var reader = new StreamReader(stream);
-            var json = await reader.ReadToEndAsync();
-            var data = JsonSerializer.Deserialize<Dictionary<string, string>>(json);
-            _strings = data ?? [];
+            using var doc = await JsonDocument.ParseAsync(stream);
+            var dict = new Dictionary<string, string>();
+            foreach (var prop in doc.RootElement.EnumerateObject())
+            {
+                dict[prop.Name] = prop.Value.GetString() ?? "";
+            }
+            _strings = dict;
             _resolved = lang;
         }
         catch

src/LiteSnap.App/ViewLocator.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Diagnostics.CodeAnalysis;
 using Avalonia.Controls;
 using Avalonia.Controls.Templates;
 using LiteSnap.App.ViewModels;
@@ -8,6 +9,7 @@ namespace LiteSnap.App;
 public class ViewLocator : IDataTemplate
 {
 
+    [UnconditionalSuppressMessage("Trimming", "IL2057", Justification = "View-for-ViewModel convention is a runtime pattern")]
     public Control? Build(object? param)
     {
         if (param is null)

src/LiteSnap.App/ViewModels/MainWindowViewModel.cs

@@ -9,6 +9,7 @@
 using System.Runtime.InteropServices;
 using System.Threading;
 using System.Text.Json;
+using System.Text.Json.Serialization;
 using System.Threading.Tasks;
 using Avalonia;
 using Avalonia.Controls;
@@ -81,7 +82,7 @@ private void LoadHistory()
             var path = HistoryPath;
             if (!File.Exists(path)) return;
             var json = File.ReadAllText(path);
-            var list = JsonSerializer.Deserialize<List<string>>(json);
+            var list = JsonSerializer.Deserialize(json, AppJsonContext.Default.ListString);
             if (list is null) return;
             RecentFolders.Clear();
             foreach (var p in list
@@ -99,7 +100,7 @@ private void SaveHistory()
         {
             var dir = Path.GetDirectoryName(HistoryPath)!;
             Directory.CreateDirectory(dir);
-            var json = JsonSerializer.Serialize(RecentFolders.Take(8).ToList());
+            var json = JsonSerializer.Serialize(RecentFolders.Take(8).ToList(), AppJsonContext.Default.ListString);
             File.WriteAllText(HistoryPath, json);
         }
         catch { }
@@ -561,4 +562,7 @@ private static async Task OpenUrl(string url)
     }
 }
 
+[JsonSerializable(typeof(List<string>))]
+internal partial class AppJsonContext : JsonSerializerContext { }
+