fix: template build entry point and DiffProgress namespace

- FullIntegration.cs: add 'using GeneralUpdate.Core.Models' so DiffProgress.Percentage resolves
- CI: prepend top-level entry point call (Console.WriteLine + await RunAsync()) to
  generated Program.cs so the templates compile as a console app
- Both MinimalIntegration and FullIntegration now build successfully

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

Author: JusterZhu

.claude/skills/generalupdate-init/templates/FullIntegration.cs

@@ -2,6 +2,7 @@
 using GeneralUpdate.Core.Configuration;
 using GeneralUpdate.Core.Download;
 using GeneralUpdate.Core.Event;
+using GeneralUpdate.Core.Models;
 
 /// <summary>
 /// GeneralUpdate 完整集成示例 — 包含所有配置选项和事件监听

.github/workflows/ci.yml

@@ -159,6 +159,13 @@ jobs:
           $code = $code -replace 'MyApp\.exe', 'TestApp.exe'
           $code = $code -replace '1\.0\.0\.0', '1.0.0.1'
           $code = $code -replace 'my-product-001', 'test-001'
+
+          # Prepend top-level entry point call so the file compiles as a console app
+          $nl = [Environment]::NewLine
+          $entryPoint = "// Entry point for build verification$nl" +
+                        'Console.WriteLine("Verifying ' + $templateName + ' compiles...");' + "$nl" +
+                        "await $templateName.RunAsync();$nl$nl"
+          $code = "$entryPoint$code"
           $code | Out-File -FilePath "$testDir\Program.cs" -Encoding UTF8
 
           Write-Host "=== Verifying: $templateName ==="