[Feature]: supports restore input history via keyboard shortcuts(Down or Up)

[axetroy]

Summary

The input box allows users to access input history using keyboard shortcuts up and down.

This is very useful, and other AI agents also support this feature, such as Copilot.

Problem / goal

None

Primary user(s)

• Bob (IT / power user)
• Susan (non-technical)
• Other team roles

OpenCode primitive alignment

None

Alignment with VISION/PRINCIPLES/PRODUCT

None

Testability

None

Ready to build it yourself?

No

Additional context

No response