[FEATURE] Mobile: allow visual preview of dev server or show Playwright screenshots in chat

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

I’m using Claude Code on mobile and it’s fantastic for making smaller changes from my phone. However, there’s currently no way to visually verify UI changes:

1. The dev server isn’t accessible from my device (sandboxed environment)
2. Claude can take screenshots via Playwright and read them internally, but the images aren’t rendered in the mobile chat UI

Proposed Solution

• Expose the dev server URL so users can preview on their device
• Render images from the Read tool (e.g. Playwright screenshots) inline in the conversation, especially on mobile

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

Other

Use Case Example

I asked Claude on mobile to male a small change on the UI. But I had to fully merge the change into main and wait for the deployment to finish before I could validate Claude did the right thing.

Additional Context

_No response_