🔧 Set up node monorepo (#2095)

.github/workflows/generate-client.yml

@@ -33,7 +33,6 @@ jobs:
         enable-cache: true
     - name: Install dependencies
       run: npm ci
-      working-directory: frontend
     - run: uv sync
       working-directory: backend
     - run: uv run bash scripts/generate-client.sh

.github/workflows/playwright.yml

@@ -99,7 +99,6 @@ jobs:
         node-version: 20
     - name: Install dependencies
       run: npm ci
-      working-directory: frontend
     - name: Download blob reports from GitHub Actions Artifacts
       uses: actions/download-artifact@v7
       with: