Lambda log level from environment

Setting the lambdas log leve lfrom the environment is helpful when troubleshooting

Start by locating the Lambda functions and their current logging configuration, then inspect how environment variables are defined and passed to them. The issue does not name files, tests, or the expected log-level behavior, so confirm those details before implementation; done should mean the Lambda log level can be controlled through the environment.

Written by the indexing model from the issue text.