Enhance Logging for Debugging in sequence and train Functions

[dhruvErry]

Description:

This PR addresses Issue #422 by improving the debugging experience for the sequence and train functions. It ensures that critical metadata (machine hostname and full command-line invocation) is logged at the start of the run.

Key Changes:

1. Added logging for:

   • Machine hostname using socket.gethostname().
   • Full command used to invoke the script (sys.argv).

2. Placed the new logs immediately after logging setup, ensuring they are captured even if the process fails early.

3. Applied the changes uniformly across both the sequence and train functions for consistency.

[bittremieux]

Hi @dhruvErry, thank you for your contribution.

In this case, we are already logging the machine hostname and the executed command at the end of the program's execution in our development version (dev branch) here.

For your PR to be incorporated, please modify it:

• Open it against dev instead of main.
• Refactor the existing log_run_report to be split into information that can be logged at the start of the run and at the end of the run, respectively.
• Correspondingly modify when these logging functions are called in casanovo.py.

Thanks!