Disable multitenancy and streamline NuGet publishing workflow.

Multitenancy is now disabled by default in `Program.cs` to simplify configuration. Additionally, removed the `publish_preview_nuget` step and refined conditions for `publish_nuget` to improve the workflow and align with the release process.

.github/workflows/packages.yml

@@ -99,27 +99,12 @@ jobs:
       - name: Publish to feedz.io
         run: dotnet nuget push *.nupkg -k ${{ secrets.FEEDZ_API_KEY }} -s ${{ env.feedz_feed_source }} --skip-duplicate
 
-  publish_preview_nuget:
-    name: Publish preview to nuget.org
-    needs: build
-    runs-on: ubuntu-latest
-    timeout-minutes: 10
-    if: ${{ github.event_name == 'prereleased' && github.event.action == 'published' }}
-    steps:
-      - name: Download Packages
-        uses: actions/download-artifact@v4.1.7
-        with:
-          name: elsa-nuget-packages
-
-      - name: Publish to nuget.org
-        run: dotnet nuget push *.nupkg -k ${{ secrets.NUGET_API_KEY }} -s ${{ env.nuget_feed_source }} --skip-duplicate
-
   publish_nuget:
     name: Publish release to nuget.org
     needs: build
     runs-on: ubuntu-latest
     timeout-minutes: 10
-    if: ${{ github.event_name == 'release' && github.event.action == 'published' }}
+    if: ${{ github.event.action == 'published' }}
     steps:
       - name: Download Packages
         uses: actions/download-artifact@v4.1.7

src/apps/Elsa.Server.Web/Program.cs

@@ -84,7 +84,7 @@ const bool useSignalR = false; // Disabled until Elsa Studio sends authenticated
 const WorkflowRuntime workflowRuntime = WorkflowRuntime.Distributed;
 const DistributedCachingTransport distributedCachingTransport = DistributedCachingTransport.MassTransit;
 const MassTransitBroker massTransitBroker = MassTransitBroker.Memory;
-const bool useMultitenancy = true;
+const bool useMultitenancy = false;
 const bool useTenantsFromConfiguration = true;
 const bool useAgents = false;
 const bool useSecrets = false;