Module edit 

Editor integration for bn edit command.

This module provides low-level file operations for editing beans:

• Launching an external editor subprocess
• Creating backups before editing
• Validating and saving edited content
• Rebuilding indices after modifications
• Prompting user for rollback on validation errors

Functions

cmd_edit

Orchestrate the complete bn edit workflow for a bean.

load_backup

Load file content into memory as a backup before editing.

open_editor

Open a file in the user’s configured editor.

prompt_rollback

Prompt user for action when validation fails: retry, rollback, or abort.

rebuild_index_after_edit

Rebuild the bean index from current bean files on disk.

validate_and_save

Validate bean content and persist it to disk with updated timestamp.