Add verification step in deploy workflow

Author: ddrayko

.github/workflows/deploy-beta.yml

@@ -22,5 +22,7 @@ jobs:
             git reset --hard origin/beta
             git checkout -B beta
             cp /tmp/beta.env .env 2>/dev/null; cp /tmp/beta.port.txt port.txt 2>/dev/null
+            grep 'discord.zero-host.org' public/js/app.js || echo "⚠ DISCORD LINK NOT FOUND IN FILE"
+            head -20 port.txt 2>/dev/null || echo "⚠ port.txt missing or empty"
             npm install
             pm2 restart beta