feat: Telegram bot for Instagram monitoring via instaloader

- aiogram 3 bot with commands /start /check /status /stop
- InstagramMonitor: periodic check of followees stories and posts
- Docker deployment with docker-compose
- State tracking to avoid duplicate sends
- Auto-cleanup of old media files

docker-compose.yml

@@ -0,0 +1,16 @@
+services:
+  ig-bot:
+    build: .
+    container_name: ig-telegram-bot
+    restart: unless-stopped
+    env_file: .env
+    volumes:
+      - ./data:/data
+    environment:
+      - DOWNLOAD_DIR=/data/downloads
+      - SESSION_FILE=/data/session/session-ig
+    logging:
+      driver: json-file
+      options:
+        max-size: "10m"
+        max-file: "3"