[Bug] Command picker fuzzy matching selects incorrect command

Bug Description
The command picker fuzzy matching is broken. If I type /context into the command line, the picker selects /compact instead. It should select what I've typed. It seems to be consistently off.

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.0.31
• Feedback ID: cba863e7-d837-42a0-b512-20f26f198880

Errors

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<img width="965" height="205" alt="Image" src="https://github.com/user-attachments/assets/82b4fe94-f1c9-4789-8feb-f8b717ca5615" />