build(compose): use canonical compose files

docs/setup-guide.md

@@ -6,19 +6,19 @@
 - MongoDB Atlas cluster (managed, no local MongoDB service required)
 - Telegram bot token from BotFather
 
-## Local Docker Run
+## Development Docker Run
 
 ```bash
 cp .env.example .env
 # set TELEGRAM_BOT_TOKEN in .env
 # set MONGODB_URI to your MongoDB Atlas connection string
-# docker compose sets MONGODB_DATABASE=openai_status_bot_dev for local development
-docker compose up --build
+# docker compose sets MONGODB_DATABASE=development for local development
+docker compose -f compose.dev.yaml up --build
 ```
 
 The Docker Compose service connects to MongoDB Atlas; there is no bundled local MongoDB. Ensure `MONGODB_URI` is set in `.env`.
 
-## Bot-Only Docker Run
+## Production Docker Run
 
 Use this for production deployment:
 
@@ -27,7 +27,7 @@ cp .env.example .env
 # set TELEGRAM_BOT_TOKEN in .env
 # set MONGODB_URI to your MongoDB Atlas connection string
 # MONGODB_DATABASE defaults to openai_status_bot (production)
-docker compose -f docker-compose.bot.yml up -d --build
+docker compose up -d --build
 ```
 
 ## Local Go Run