Add license-extend, license-edit, and license-export commands

This release introduces three new commands to enhance license management and data accessibility:

• /license-extend: Extend the expiration time of an active license.
• /license-edit: Edit the data of a non-active license.
• /license-export: Export licenses in CSV and JSON formats.

These features provide more flexibility for administrators and improve operational workflows.
Bug fixes and minor improvements are also included.