Summary

On WSL, applying presets during onboarding can pass a truncated sandbox name such as m instead of my-assistant, causing sandbox not found failures.

Problem

The onboarding flow is not robust across shell or argument-parsing differences on WSL, especially for names containing hyphens.

Expected behavior

Sandbox names should be passed through unchanged across supported shells and platforms.

Acceptance criteria

• WSL onboarding works with hyphenated sandbox names.
• openshell policy set --wait receives the full sandbox name.
• Add a regression test for WSL-style argument handling.
• Error messages include the exact sandbox name being acted on when policy application fails.