Add Unship to Tools & Utilities

[mbenhard]

Summary

• Add Unship to the Tools & Utilities section.
• Unship is an open-source local CLI/browser picker for comparing AI agent-made UI variants in a real app, then keeping one and cleaning up the rest.
• It works with Claude Code and other coding agents; it is local comparison tooling, not production A/B testing.

Validation

• git diff --check