Add requests and response body to log in DEBUG mode

[nguyenhoangthuan99]

[dan-menlo]

@nguyenhoangthuan99 Is this task still necessary?

[nguyenhoangthuan99]

• We need to add log request and response body with DEBUG log level.
• We need to support set loglevel when start cortex server:
  • cortex start --loglevel DEBUG.
  • List of accepted loglevel is: TRACE, DEBUG, INFO, WARNING, ERROR

[gabrielle-ong]

Thanks @nguyenhoangthuan99 for the note:
ERROR > WARN > INFO > DEBUG > TRACE. for example if you set log level is INFO you'll only see ERROR, WARN, and INFO

On Mac, I'm still getting INFO logs despite setting WARN loglevel.

cortex stop
cortex start --loglevel WARN
cortex run tinyllama:1b-gguf

Here's the new log files (after deleting)
cortex-cli.log
cortex.log