fix: Update CI to run tests from new numbered directory structure

- Test Core layer (6-Tests/Aquiis.Core.Tests)
- Test Application layer (6-Tests/Aquiis.Application.Tests)
- Test Shared UI components with bUnit (6-Tests/Aquiis.UI.Shared.Tests)
- Omit Infrastructure tests (no tests yet) and Playwright UI tests (require running apps)

Author: CIS Guru

.github/workflows/ci.yml

@@ -25,5 +25,11 @@ jobs:
       - name: Build
         run: dotnet build Aquiis.sln --no-restore --configuration Release
 
-      - name: Run focused tests
+      - name: Test Core Layer
+        run: dotnet test 6-Tests/Aquiis.Core.Tests/Aquiis.Core.Tests.csproj --no-build --configuration Release --verbosity normal
+
+      - name: Test Application Layer
         run: dotnet test 6-Tests/Aquiis.Application.Tests/Aquiis.Application.Tests.csproj --no-build --configuration Release --verbosity normal
+
+      - name: Test Shared UI Components (bUnit)
+        run: dotnet test 6-Tests/Aquiis.UI.Shared.Tests/Aquiis.UI.Shared.Tests.csproj --no-build --configuration Release --verbosity normal