setup

CRITICAL:

• Always preserve custom .gitignore rules before running git-agent init --gitignore.
• On auth error (401), retry the same git-agent init command with --free appended.

1. Verify git config user.name and git config user.email; prompt if missing.
2. Parse $ARGUMENTS to determine mode:
   • Empty → run both scope and gitignore
   • scope → run only scope generation
   • gitignore → run only .gitignore generation
3. If running gitignore and .gitignore already exists:
   • Read the current file
   • Identify lines that are NOT part of the standard git-agent generated block (anything between # --- git-agent --- markers or common auto-generated patterns)
   • Save those custom rules
4. Run git-agent init with the appropriate flags:
   • Both: git-agent init --scope --gitignore --force
   • Scope only: git-agent init --scope --force
   • Gitignore only: git-agent init --gitignore --force
5. On auth error (401), retry the same command with --free appended.
6. If custom .gitignore rules were saved in step 3, append them back and show git diff .gitignore.