added test checks before running tests

.github/workflows/docker.yml

@@ -78,9 +78,19 @@ jobs:
         working-directory: ./backend
         run: npx tsc --noEmit
 
-      - name: Run backend tests
+      - name: Check if tests exist and run them
         working-directory: ./backend
-        run: npm test --if-present
+        run: |
+          # Check if jest is available and test script exists
+          if npx --no-install jest --version > /dev/null 2>&1; then
+            echo "Running tests with Jest..."
+            npm test
+          elif [ -f "package.json" ] && grep -q '"test"' package.json; then
+            echo "Running test script from package.json..."
+            npm test
+          else
+            echo "No tests configured. Skipping test execution."
+          fi
 
       - name: Setup Python
         uses: actions/setup-python@v4