tweaked ui and updated invite command

backend/.env.example

@@ -0,0 +1,22 @@
+# Example backend .env
+# Set the host/interface to bind to (for Tailscale use your 100.x.y.z address)
+HOST=0.0.0.0
+PORT=3002
+
+# Optional: fully-qualified base URLs
+BACKEND_BASE=http://100.x.y.z:3002
+FRONTEND_BASE=http://100.x.y.z:3000
+
+# CORS origin (frontend origin) - set to frontend base for tighter security
+CORS_ORIGIN=http://100.x.y.z:3000
+
+# Optional invite delete protection
+INVITE_API_KEY=replace-with-a-secret
+
+# Discord credentials
+DISCORD_CLIENT_ID=your_client_id
+DISCORD_CLIENT_SECRET=your_client_secret
+DISCORD_BOT_TOKEN=your_bot_token
+
+# Encryption key for backend db.json
+ENCRYPTION_KEY=pick-a-long-random-string