feat: integrate Codecov v5 with test results and add comprehensive status badges

- Update Codecov action from v3 to v5 with token authentication
- Add Codecov test results action v1 for test analytics
- Update pytest to generate JUnit XML for test results
- Add comprehensive status badges to README including:
  - Codecov coverage badge
  - CI/CD workflow status badges (Tests, Docker CI, CodeQL)
  - GitHub release, license, and Python version badges
  - Social badges for stars, forks, issues, and PRs

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

.github/workflows/tests.yaml

@@ -40,14 +40,21 @@ jobs:
           pip install -r requirements-dev.txt
 
       - name: Run Tests
-        run: pytest tests/ -v --cov=app --cov-report=xml --cov-report=term
+        run: pytest tests/ -v --cov=app --cov-report=xml --cov-report=term --junitxml=junit.xml -o junit_family=legacy
 
-      - name: Upload Coverage to Codecov
-        uses: codecov/codecov-action@v3
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v5
         with:
+          token: ${{ secrets.CODECOV_TOKEN }}
           file: ./coverage.xml
           fail_ci_if_error: false
 
+      - name: Upload test results to Codecov
+        if: ${{ !cancelled() }}
+        uses: codecov/test-results-action@v1
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+
       - name: Run Linter (Flake8)
         run: flake8 app/ --max-line-length=120 --extend-ignore=E203,W503
         continue-on-error: false