Make `/ide` command settings persistent via `/config`

Feature Request

Problem

The /ide command settings don't persist between Claude Code sessions. Users who prefer to disable IDE integration (e.g., VSCode integration) have to manually disable it every time they start a new session.

Proposed Solution

Move IDE integration settings to the /config command so they persist across sessions, similar to other configurable preferences.

Use Case

• User prefers to use Claude in VSCode but dislikes the integration features
• Currently needs to run /ide disable (or equivalent) every session
• Would prefer to set this once via /config and have it remembered

Expected Behavior

• /config should include IDE integration preferences
• Settings should persist across Claude Code sessions
• Users shouldn't need to reconfigure the same preferences repeatedly

Additional Context

This would improve the user experience by reducing repetitive configuration tasks and making the tool more predictable for users with specific IDE preferences.