feat: add safety warning before initializing a git repository

[shatrughantwt]

Problem

Currently, running gitx -i/--init will initialize a git repository in the current directory without any additional confirmation.

This can be risky if the command is executed from sensitive or unintended locations (e.g. /, $HOME, /tmp), where initializing a repository is usually not desired.

Proposed Solution

Add a safety warning before running git init when the current directory is considered potentially unsafe.

Suggested behavior:

• When gitx -i/--init is run in a sensitive directory:
  • Print a clear warning explaining the risk.
  • Ask the user for confirmation (e.g. Continue? [y/N]:).
  • Abort the operation if the user does not explicitly confirm.
• When run in a normal project directory:
  • Proceed without any additional prompt.

Notes

• This check would only apply when using the -i/--init flag.
• The TUI should only open after successful initialization.
• Happy to adjust the scope or behavior based on maintainer feedback.