feat: Initial commit Plants vs Zombies Web Edition v2.4

- 5 Biomes: Day, Night, Pool, Fog, Roof (25 Campaign levels)
- Minigames: Wall-nut Bowling, I Zombie, Roguelike, Boss Rush & Dr. Zomboss
- Systems: Zen Garden, Workshop Crafting, Almanac, Tree of Wisdom, Achievements
- Backend: REST API + SQLite Accounts & Save Synchronization
- Infrastructure: Nginx HTTPS & Docker deployment

scripts/renew-certs.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+set -e
+PROJECT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$PROJECT_DIR"
+
+echo "[$(date)] Checking and renewing SSL certificates..."
+docker compose run --rm certbot renew --webroot --webroot-path=/var/www/certbot
+docker compose exec nginx nginx -s reload || docker compose restart nginx
+echo "[$(date)] Certificate check finished."