fix(ci): stabilize pnpm installation and ensure fail-fast testing

scripts/run_adminfront_ci_tests.sh

@@ -203,9 +203,8 @@ set +e
   echo "packages: ['.', '../adminfront']" > pnpm-workspace.yaml
 
   if [ "$reuse_seed_node_modules" -eq 0 ]; then
-    if ! command -v pnpm >/dev/null 2>&1; then
-      run_with_retry 3 npm install -g pnpm
-    fi
+    corepack enable
+    corepack prepare pnpm@10.5.2 --activate
     run_with_retry 3 env CI=true pnpm install --no-frozen-lockfile --shamefully-hoist --store-dir "$pnpm_store_dir"
   fi
 
@@ -299,7 +298,7 @@ echo "==> adminfront using PORT=$port"
 (
   cd "$tmp_dir/adminfront"
   CI=true PORT="$port" PLAYWRIGHT_WORKERS="${PLAYWRIGHT_WORKERS:-1}" \
-    pnpm exec playwright test "${playwright_project_args[@]}"
+    pnpm exec playwright test --max-failures=1 "${playwright_project_args[@]}"
 ) 2>&1 | tee reports/adminfront-test.log
 test_exit_code=${PIPESTATUS[0]}
 set -e