ci(e2e): ensure TMPDIR exists before installing Playwright; install chromium with deps via npx; keep repo-local paths

Author: patchmemory

.github/workflows/tests.yml

@@ -21,16 +21,16 @@ jobs:
         run: |
           python -m pip install --upgrade pip
           pip install -e .[dev]
+      - name: Prepare repo-local temp directories
+        run: |
+          mkdir -p dev/test-runs/{tmp,pytest-tmp,artifacts,downloads,pw-browsers}
       - name: Install Playwright browsers
         if: matrix.tier == 'e2e'
         env:
           PLAYWRIGHT_BROWSERS_PATH: ${{ github.workspace }}/dev/test-runs/pw-browsers
           TMPDIR: ${{ github.workspace }}/dev/test-runs/tmp
         run: |
           npx playwright install chromium --with-deps
-      - name: Prepare repo-local temp directories
-        run: |
-          mkdir -p dev/test-runs/{tmp,pytest-tmp,artifacts,downloads,pw-browsers}
       - name: Run tests by tier
         env:
           SCIDK_E2E: ${{ matrix.tier == 'e2e' && '1' || '0' }}