refactor(ci): separate test and coverage steps

- Updated `.github/workflows/ci.yml`:
  - Split the "Test" step into two separate steps: one for running tests (`npm run test`) and another for coverage generation (`npm run test:coverage`).
  - Ensures more granular execution and better step visibility in CI pipelines.

.github/workflows/ci.yml

@@ -29,7 +29,10 @@ jobs:
         run: npm run lint
 
       - name: Test
-        run: npm run test -- --coverage
+        run: npm run test
+
+      - name: Coverage
+        run: npm run test:coverage
 
       - name: Upload coverage reports to Codecov
         uses: codecov/codecov-action@v5