test(i18n): vitest-чек синхронности en/ru локалей + запуск тестов в CI

.github/workflows/ci.yml

@@ -10,8 +10,26 @@ jobs:
   lint:
     uses: ./.github/workflows/lint.yml
 
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run tests
+        run: npm run test
+
   build:
-    needs: lint
+    needs: [lint, test]
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code