feat: add safety warning

[shatrughantwt]

Fixes #34

What this PR does

This PR adds a safety confirmation step before initializing a git repository using gitx -i/--init.

When the command is run from potentially sensitive locations (such as /, $HOME, or /tmp), the user is warned and asked to explicitly confirm before proceeding. This helps prevent accidental repository initialization in unintended directories.

Behavior

• gitx

  • Errors out if no git repository exists and suggests using -i/--init.

• gitx -i/--init

  • Shows a safety warning in sensitive directories and asks for confirmation.
  • Aborts if the user does not confirm.
  • Proceeds with initialization and opens the TUI on confirmation.

Notes

• The safety check only applies when using the -i/--init flag.
• No change in behavior for normal project directories.
• The TUI startup flow remains unchanged and runs only after successful initialization.

Please let me know if you’d like the warning scope or behavior adjusted.