Add favicon and prod deploy script

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/deploy-prod.sh

@@ -0,0 +1,42 @@
+#!/bin/bash
+set -e
+
+TAG="${1:?Usage: deploy-prod.sh <tag> (e.g. v3.3.2)}"
+DROPLET="root@165.245.152.51"
+IMAGE="git.adlee.work/alee/golfgame"
+
+echo "Deploying $TAG to production ($DROPLET)..."
+
+ssh $DROPLET bash -s "$TAG" "$IMAGE" <<'REMOTE'
+set -e
+TAG="$1"
+IMAGE="$2"
+
+cd /opt/golfgame
+
+# Pull the image that passed staging
+docker pull "$IMAGE:$TAG"
+docker tag "$IMAGE:$TAG" golfgame-app:latest
+
+# Update code for compose/env changes
+git fetch origin
+git checkout "$TAG"
+
+# Restart app
+docker compose -f docker-compose.prod.yml up -d app
+
+# Wait for healthy
+echo "Waiting for health check..."
+for i in $(seq 1 30); do
+  if docker compose -f docker-compose.prod.yml ps app | grep -q "healthy"; then
+    echo "Production deploy successful — $TAG"
+    exit 0
+  fi
+  sleep 2
+done
+echo "CRITICAL: app not healthy after 60s"
+docker compose -f docker-compose.prod.yml logs --tail=30 app
+exit 1
+REMOTE
+
+echo "Done."