fix: publish port 8001 to host, replace curl healthcheck with python3 urllib

docker-compose.yml

@@ -6,13 +6,15 @@ services:
     container_name: activeblue-agent
     restart: unless-stopped
     env_file: .env
+    ports:
+      - '0.0.0.0:8001:8001'
     depends_on:
       agent-db:
         condition: service_healthy
     networks:
       - activeblue-net
     healthcheck:
-      test: ['CMD', 'curl', '-f', 'http://localhost:8001/health']
+      test: ['CMD', 'python3', '-c', "import urllib.request; urllib.request.urlopen('http://localhost:8001/health', timeout=5)"]
       interval: 30s
       timeout: 10s
       retries: 3