Grok Build v0.2.106

Grok Build 0.2.106 makes clipboard handling much more reliable with automatic backups, and lets you update scheduled tasks without recreating them. We've also fixed annoying display issues for light terminal users. Check out what else improved under the hood.

Grok Build 0.2.106
- Added GROK_CLIPBOARD_NO_OSC52 env var to stop clipboard sequences from appearing as garbage in unsupported terminals
- Scheduled tasks can now be updated in place; one-time tasks are retired in favor of background commands
- Copies now always write a backup file so text remains recoverable when the terminal clipboard fails
- Syntax highlighting in --minimal mode is now visible on light terminals