feat: register PDF download block and fix gotify notifications

.gitea/workflows/deploy.yml

@@ -587,6 +587,11 @@ jobs:
           Deploy: $DEPLOY | Smoke: $SMOKE | Perf: $PERF
           $URL"
 
+          if [[ -z "${{ secrets.GOTIFY_URL }}" || -z "${{ secrets.GOTIFY_TOKEN }}" ]]; then
+            echo "⚠️ Gotify credentials missing, skipping notification."
+            exit 0
+          fi
+
           curl -s -k -X POST "${{ secrets.GOTIFY_URL }}/message?token=${{ secrets.GOTIFY_TOKEN }}" \
             -F "title=$TITLE" \
             -F "message=$MESSAGE" \