[FEATURE] let the previous prompts search be available in agents view

### Preflight Checklist

- [x] I have searched [existing requests](https://github.com/anthropics/claude-code/issues?q=is%3Aissue%20label%3Aenhancement) and this feature hasn't been requested yet
- [x] This is a single feature request (not multiple features)

### Problem Statement

I always work in agents view and it's often the case I am reusing my skills in similar prompts. "Ctrl + r" is great for that usecase, however it's unavailable in agents view.

### Proposed Solution

It would be helpful to make the previous prompt search available in the agents view.

### Alternative Solutions

_No response_

### Priority

Medium - Would be very helpful

### Feature Category

Developer tools/SDK

### Use Case Example

Example scenario:
- I trigger PR review with few sentences that describe what I want to be checked
- next PR shows up, and I want to reuse most of the previous prompt so I'd like to trigger prompt search in the agents view
- select correct prompt, modify few details and launch a second review session

### Additional Context

_No response_