chore: add dependencies and configuration

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.env.example

@@ -0,0 +1,9 @@
+BOT_TOKEN=isi_token_bot_telegram
+STORAGE_CHANNEL_ID=-1001234567890
+BASE_URL=https://tele.asepharyana.tech
+DATABASE_URL=postgresql://user:password@localhost:5432/telegram_uploader
+PORT=3000
+NODE_ENV=production
+LOG_LEVEL=info
+RATE_LIMIT_WINDOW_MS=60000
+RATE_LIMIT_MAX_REQUESTS=30