🔧 Migrate from npm to Bun (#2097)

.github/workflows/playwright.yml

@@ -48,9 +48,7 @@ jobs:
       fail-fast: false
     steps:
     - uses: actions/checkout@v6
-    - uses: actions/setup-node@v6
-      with:
-        node-version: lts/*
+    - uses: oven-sh/setup-bun@v2
     - uses: actions/setup-python@v6
       with:
         python-version: '3.10'
@@ -66,7 +64,7 @@ jobs:
         enable-cache: true
     - run: uv sync
       working-directory: backend
-    - run: npm ci
+    - run: bun ci
       working-directory: frontend
     - run: uv run bash scripts/generate-client.sh
       env:
@@ -74,7 +72,7 @@ jobs:
     - run: docker compose build
     - run: docker compose down -v --remove-orphans
     - name: Run Playwright tests
-      run: docker compose run --rm playwright npx playwright test --fail-on-flaky-tests --trace=retain-on-failure --shard=${{ matrix.shardIndex }}/${{ matrix.shardTotal }}
+      run: docker compose run --rm playwright bunx playwright test --fail-on-flaky-tests --trace=retain-on-failure --shard=${{ matrix.shardIndex }}/${{ matrix.shardTotal }}
     - run: docker compose down -v --remove-orphans
     - name: Upload blob report to GitHub Actions Artifacts
       if: ${{ !cancelled() }}
@@ -94,11 +92,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v6
-    - uses: actions/setup-node@v6
-      with:
-        node-version: 20
+    - uses: oven-sh/setup-bun@v2
     - name: Install dependencies
-      run: npm ci
+      run: bun ci
     - name: Download blob reports from GitHub Actions Artifacts
       uses: actions/download-artifact@v7
       with:
@@ -106,7 +102,7 @@ jobs:
         pattern: blob-report-*
         merge-multiple: true
     - name: Merge into HTML Report
-      run: npx playwright merge-reports --reporter html ./all-blob-reports
+      run: bunx playwright merge-reports --reporter html ./all-blob-reports
       working-directory: frontend
     - name: Upload HTML report
       uses: actions/upload-artifact@v6