publish: 1.2.8 — verify v1.2.7's restart-to-update flow end-to-end

No code change. Confirms that on a clean v1.2.7 install (correct
simplified updater), pressing "בדוק עדכונים" reports the new version
honestly, and the VSTO runtime auto-installs v1.2.8 on the next
Outlook startup with no errors.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/OutlookAddin/OutlookAddin.csproj

@@ -36,7 +36,7 @@
     <PublishUrl>C:\Users\Chaim\source\repos\OutlookAddin\Publish\</PublishUrl>
     <InstallUrl>https://gitea.dev.marcus-law.co.il/espocrm-extensions/OutlookAddin/raw/branch/main/Publish/</InstallUrl>
     <TargetCulture>en</TargetCulture>
-    <ApplicationVersion>1.2.7.0</ApplicationVersion>
+    <ApplicationVersion>1.2.8.0</ApplicationVersion>
     <AutoIncrementApplicationRevision>false</AutoIncrementApplicationRevision>
     <UpdateEnabled>true</UpdateEnabled>
     <UpdateInterval>7</UpdateInterval>

src/OutlookAddin/Properties/AssemblyInfo.cs

@@ -33,6 +33,6 @@ using System.Security;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.2.7.0")]
-[assembly: AssemblyFileVersion("1.2.7.0")]
+[assembly: AssemblyVersion("1.2.8.0")]
+[assembly: AssemblyFileVersion("1.2.8.0")]