fix(ci): use environment variable for secrets check in if condition

Author: dedicatedbroadcastsolutions

.github/workflows/node.yaml

@@ -104,8 +104,10 @@ jobs:
           ls -la apps/tsr-bridge/electron-output || true
           echo 'package.json for tsr-bridge:'
           sed -n '1,200p' apps/tsr-bridge/package.json || true
+      - name: Set signing secret
+        run: echo "HAS_MAC_CSC_LINK=${{ secrets.MAC_CSC_LINK != '' }}" >> $GITHUB_ENV
       - name: Build binaries
-        if: ${{ secrets.MAC_CSC_LINK }}
+        if: env.HAS_MAC_CSC_LINK == 'true'
         run: |
           # Run binary builds per workspace to ensure electron-builder runs in package cwd
           retry() { cmd="$1"; n=0; until [ $n -ge 3 ]; do eval "$cmd" && return 0; n=$((n+1)); echo "Retry $n for: $cmd"; sleep 5; done; return 1; }