ci: publish only the web application container

Disable container support for tests and bump the application version to
1.2.1.

.github/workflows/ci.yaml

@@ -30,7 +30,9 @@ jobs:
           cache: true
           cache-dependency-path: '**/packages.lock.json'
       - name: Restore dependencies
-        run: dotnet restore --locked-mode
+        # Scoped to the web app so the test project is never restored or built here; it pulls in
+        # Contracts and Services through its project references. Tests run locally, not in this job.
+        run: dotnet restore CaddyManager/CaddyManager.csproj --locked-mode
       - name: Application metadata
         id: metadata
         run: |
@@ -41,7 +43,7 @@ jobs:
           sed -i "s/public static readonly string CommitHash = \"\[DEVELOPMENT\]\";/public static readonly string CommitHash = \"${{ steps.metadata.outputs.COMMIT_HASH }}\";/" CaddyManager/Configurations/Application/ApplicationInfo.cs
       - name: Publish container
         run: |
-          dotnet publish \
+          dotnet publish CaddyManager/CaddyManager.csproj \
           --configuration Release --os linux-musl --arch x64 \
           /t:PublishContainer -p ContainerRegistry=ghcr.io \
           -p ContainerRepository=${{ github.repository }} -p:ContainerImageTags='"${{ steps.metadata.outputs.APP_VERSION }};latest"'

CaddyManager.Tests/CaddyManager.Tests.csproj

@@ -6,6 +6,16 @@
         <ImplicitUsings>enable</ImplicitUsings>
         <IsPackable>false</IsPackable>
         <IsTestProject>true</IsTestProject>
+        <!--
+            The test SDK makes this project an executable, so a solution wide
+            `dotnet publish /t:PublishContainer` containerizes it alongside the web app, pushes both
+            to the same repository and tag, and lets the last one to finish win. That shipped an
+            image whose entrypoint was the test assembly, which exits 0 without output, so the
+            container looked like it started and stopped for no reason.
+            The pipelines publish the web app project explicitly; this keeps a solution wide publish
+            from ever producing an image from the tests again.
+        -->
+        <EnableSdkContainerSupport>false</EnableSdkContainerSupport>
     </PropertyGroup>
 
     <ItemGroup>

CaddyManager/Configurations/Application/ApplicationInfo.cs

@@ -8,7 +8,7 @@ public class ApplicationInfo
     /// <summary>
     /// The version of the application, to be defined and tagged
     /// </summary>
-    public static readonly string Version = "1.2.0";
+    public static readonly string Version = "1.2.1";
 
     /// <summary>
     /// The commit hash of the application