Run all backend services with a single docker-compose.yml

backend/README.md

backend/app/.dockerignore

backend/app/Dockerfile

backend/app/package-lock.json

backend/app/package.json

backend/app/src/database.js

backend/app/src/index.js

backend/docker-compose.yml

backend/envoy/envoy(dapr).yaml

backend/envoy/envoy.yaml

backend/gateway/.dockerignore

backend/gateway/Dockerfile

backend/gateway/README.txt

backend/gateway/package-lock.json

backend/gateway/package.json

backend/gateway/protos/README.md

backend/gateway/protos/v3/projector.proto

backend/gateway/src/database.js

backend/gateway/src/index(OLD).js

backend/gateway/src/index.js