Enhance test workflow to include HTML coverage report and publish test results summary

Author: Claptar

.github/workflows/tests.yml

@@ -32,16 +32,31 @@ jobs:
     
     - name: Run tests with coverage
       run: |
-        uv run pytest tests/ -v --cov=h5ad --cov-report=term-missing --cov-report=xml
+        uv run pytest tests/ -v --cov=h5ad --cov-report=term-missing --cov-report=xml --cov-report=html --junitxml=pytest-results.xml
     
-    - name: Upload coverage report as artifact
+    - name: Publish test results summary
+      uses: EnricoMi/publish-unit-test-result-action@v2
+      if: always()
+      with:
+        files: pytest-results.xml
+        check_name: Test Results
+    
+    - name: Upload coverage XML
       uses: actions/upload-artifact@v4
       if: always()
       with:
-        name: coverage-report
+        name: coverage-xml
         path: coverage.xml
         retention-days: 30
 
+    - name: Upload coverage HTML
+      uses: actions/upload-artifact@v4
+      if: always()
+      with:
+        name: coverage-html
+        path: htmlcov/
+        retention-days: 30
+    
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v4
       with: