Implement healthcheck for orchestator

https://docs.docker.com/reference/compose-file/services/#depends_on

Read the linked Docker Compose depends_on documentation, then inspect the repository's orchestration configuration to identify the service and current startup behavior. Define the healthcheck target and verify that Compose waits for the service to become healthy; the issue provides no file or test name, so its scope needs clarification first.

Written by the indexing model from the issue text.