web: fix issues with entrypoint

docker-compose.example.yml

@@ -19,7 +19,7 @@ services:
     environment:
       - POSTGRES_DB=${DB_NAME:-nfoguard}
       - POSTGRES_USER=${DB_USER:-nfoguard}
-      - POSTGRES_PASSWORD=${DB_PASSWORD}
+      - POSTGRES_PASSWORD=${DB_PASSWORD:-}
       - TZ=${TZ:-America/New_York}
     volumes:
       - postgres_data:/var/lib/postgresql/data
@@ -72,7 +72,7 @@ services:
     image: gitea.skalas.org/sbcrumb/nfoguard:latest  # Same image as core!
     container_name: nfoguard-web
     restart: unless-stopped
-    command: ["python", "nfoguard-web/main_web.py"]  # Different entry point
+    command: ["python", "start_web.py"]  # Different entry point
     env_file:
       - .env
       - .env.secrets
@@ -80,12 +80,6 @@ services:
       - TZ=${TZ:-America/New_York}
       - WEB_HOST=0.0.0.0
       - WEB_PORT=8081
-      - DB_HOST=nfoguard-db
-      - CORE_API_HOST=nfoguard
-      - CORE_API_PORT=8080
-      - DB_NAME=${DB_NAME:-nfoguard}
-      - DB_USER=${DB_USER:-nfoguard}
-      - DB_PASSWORD=${DB_PASSWORD}
     ports:
       - "${WEB_API_PORT:-8081}:8081"  # Web Interface
     depends_on: