Minor improvements - work in progress

api.py

docker-compose-workers.yml

lib/get_most_recent_status_logs.py

lib/log_message.py

lib/mongo_helper.py

lib/read_and_filter_logs.py

lib/read_status_logs.py

main.py

workers/doc-enricher.py

workers/doc-indexer.py

workers/doc-processor.py

workers/metadata-processor.py

workers/process-logger.py

workers/reindexer.py

workers/sample-generator.py