feat: implement SyncService for filtering and logging asset releases

Program.cs

@@ -12,13 +12,14 @@ var repositoryConfig = await RepoConfigLoader.LoadConfigAsync(
 builder.Services.AddSingleton(repositoryConfig);
 
 builder.Services.AddSingleton<GithubService>();
+builder.Services.AddSingleton<SyncService>();
 
 var app = builder.Build();
 
 using var scope = app.Services.CreateScope();
 
 await scope.ServiceProvider
-    .GetRequiredService<GithubService>()
-    .FetchRepoReleasesAsync("SagerNet","sing-box");
+    .GetRequiredService<SyncService>()
+    .Sync();
 
 await app.RunAsync();