fix: seed FK flush order, DPS path resolution, admin_uploads Docker mount, docker-compose env additions

docker-compose.yml

@@ -52,6 +52,7 @@ services:
     container_name: pragativeer_backend
     volumes:
       - ./backend:/app
+      - ./admin_uploads:/app/admin_uploads:ro
     ports:
       - "8000:8000"
     environment:
@@ -121,6 +122,7 @@ services:
       - "3000:3000"
     environment:
       - NEXT_PUBLIC_API_URL=http://localhost:8000
+      - NEXT_PUBLIC_PAYMENT_GATEWAY=razorpay
     depends_on:
       - backend
     networks: