Feature Request: Add code formatting #4241

Feature Request

Is your feature request related to a problem? Please describe.
Currently, code formatting requires external tools. Built-in formatting would improve workflow.

Describe the solution you'd like
Add code formatting:

• Automatic formatting
• Custom formatting rules
• Format on save
• Format on paste
• Format selection

Describe alternatives you've considered

• Integrate with existing formatting tools
• Add as a plugin
• Create a separate formatting service

Additional context
This would ensure consistent code style across projects.