Install release WebUI modules sequentially in CI

.gitea/workflows/module-matrix.yml

@@ -39,19 +39,6 @@ jobs:
           .venv/bin/python -m pip install '.[dev]'
       - name: Install WebUI release dependencies with test scripts
         working-directory: webui
-        run: |
-          node -e "const fs=require('fs'); const pkg=JSON.parse(fs.readFileSync('package.json')); const rel=JSON.parse(fs.readFileSync('package.release.json')); for (const key of ['dependencies','devDependencies','peerDependencies','optionalDependencies','overrides']) if (rel[key]) pkg[key]=rel[key]; fs.writeFileSync('package.json', JSON.stringify(pkg, null, 2) + '\n');"
-          rm -f package-lock.json
-          npm cache clean --force
-          for attempt in 1 2 3; do
-            if npm install --prefer-online; then
-              break
-            fi
-            if [ "$attempt" = 3 ]; then
-              exit 1
-            fi
-            sleep $((attempt * 10))
-            npm cache clean --force
-          done
+        run: bash ../scripts/install-webui-release-dependencies.sh .
       - name: Run module matrix and contract tests
         run: bash scripts/check-module-matrix.sh