publish: 1.0.7 — switch to 3-part SemVer, manual bumps only

Versioning policy: MAJOR.MINOR.PATCH stored as MAJOR.MINOR.PATCH.0
in the ClickOnce manifest (it requires 4 components). The trailing
.0 is hidden by SettingsViewModel.ResolveDisplayVersion so the About
tab shows "1.0.7" not "1.0.7.0".

AutoIncrementApplicationRevision is now false; every published change
must bump <ApplicationVersion> and AssemblyVersion/AssemblyFileVersion
together by hand. MAJOR bumps need explicit owner approval.

Previously AssemblyVersion was pinned at 1.0.0.0 while ClickOnce
auto-bumped only ApplicationVersion, so the deployed DLL's
FileVersion never matched the manifest. Now they're locked at 1.0.7.0.

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

src/OutlookAddin.UI/ViewModels/SettingsViewModel.cs

@@ -91,12 +91,13 @@ namespace MarcusLaw.OutlookAddin.UI.ViewModels
         /// </summary>
         private static string ResolveDisplayVersion()
         {
+            Version? v = null;
             try
             {
                 if (System.Deployment.Application.ApplicationDeployment.IsNetworkDeployed)
                 {
-                    return System.Deployment.Application.ApplicationDeployment
-                        .CurrentDeployment.CurrentVersion.ToString();
+                    v = System.Deployment.Application.ApplicationDeployment
+                        .CurrentDeployment.CurrentVersion;
                 }
             }
             catch
@@ -104,7 +105,14 @@ namespace MarcusLaw.OutlookAddin.UI.ViewModels
                 // Not running under ClickOnce (dev / F5), or System.Deployment
                 // is not available — fall through to the AssemblyVersion.
             }
-            return typeof(SettingsViewModel).Assembly.GetName().Version?.ToString() ?? "1.0.0";
+            v ??= typeof(SettingsViewModel).Assembly.GetName().Version;
+            if (v == null) return "1.0.0";
+
+            // ClickOnce stores 4 components; project policy is MAJOR.MINOR.PATCH —
+            // hide the trailing revision when it's 0.
+            return v.Revision == 0
+                ? $"{v.Major}.{v.Minor}.{v.Build}"
+                : v.ToString();
         }
 
         /// <summary>